Preventing the unthinkable ongoing crisis with Tehran is not the first time Washington has faced a hostile government attempting to develop nuclear weapons. Nor is it likely to be the last. Yet the reasoning of U.S. officials now struggling to deal with Iran’s nuclear ambitions is clouded by a kind of historical amnesia, which leads to both creeping fatalism about the United States’ ability to keep Iran from getting the bomb and excessive optimism about the United States’ ability to contain Iran if it does become a nuclear power.

A U.S. official in the executive branch anonymously told the New York Times in March 2006, “The reality is that most of us think the Iranians are probably going to get a weapon, or the technology to make one, sooner or later.” Military planners and intelligence officers have reportedly been tasked with developing strategies to deter Tehran if negotiations fail.

Both proliferation fatalism and deterrence optimism are wrong-headed, and they reinforce each other in a disturbing way. As nuclear proliferation comes to be seen as inevitable, wishful thinking can make its consequences seem less severe, and if faith in deterrence grows, incentives to combat proliferation diminish.

Deterrence optimism is based on mistaken nostalgia and a faulty analogy. Although deterrence did work with the Soviet Union and China, there were many close calls; maintaining nuclear peace during the Cold War was far more difficult and uncertain than U.S. officials and the American public seem to remember today. Furthermore, a nuclear Iran would look a lot less like the totalitarian Soviet Union and the People’s Republic of China and a lot more like Pakistan, Iran’s unstable neighbor—a far more frightening prospect.

Fatalism about nuclear proliferation is equally unwarranted. Although the United States did fail to prevent its major Cold War rivals from developing nuclear arsenals, many other countries—including Japan, West Germany, South Korea, and more recently Libya—curbed their own nuclear ambitions.

THE REASONS WHY

The way for Washington to move forward on Iran is to give Tehran good reason to relinquish its pursuit of nuclear weapons. That, in turn, requires understanding why Tehran wants them in the first place.

Iran’s nuclear energy program began in the 1960s under the shah, but even he wanted to create a breakout option to get the bomb quickly if necessary. One of his senior energy advisers recalled, “The shah told me that he does not want the bomb yet, but if anyone in the neighborhood has it, we must be ready to have it.” At first, Ayatollah Ruhollah Khomeini objected to nuclear weapons on religious grounds, but the mullahs abandoned such restraint after Saddam Hussein ordered chemical attacks on Iranian forces during the Iran-Iraq War.

The end of Saddam’s rule in 2003 significantly reduced the security threat to Tehran. But by then the United States had taken Iraq’s place. In his January 2002 State of the Union address, President Bush had denounced the governments of Iran, Iraq, and North Korea as members of an “axis of evil” with ties to international terrorism. After the fall of Baghdad, an unidentified senior U.S. official told a Los Angeles Times reporter that Tehran should “take a number,” hinting that it was next in line for regime change.

Increasingly, Bush administration spokespeople advocated “preemption” to counter proliferation. When asked, in April 2006, whether the Pentagon was considering a potential preventive nuclear strike against Iranian nuclear facilities, President Bush pointedly replied, “All options are on the table.”

AGREED FRAMEWORK IN FARSI

A source of inspiration for handling Iran is the 1994 Agreed Framework that the United States struck with North Korea. The Bush administration has severely criticized the deal, but it contained several elements that could prove useful in the Iranian nuclear crisis.

After the North Koreans were caught violating their NPT commitments in early 1993, they threatened to withdraw from the treaty. Declaring that “North Korea cannot be allowed to develop a nuclear bomb,” President Clinton threatened an air strike on the Yongbyon reactor site if the North Koreans took further steps to reprocess plutonium. In June 1994, as the Pentagon was reinforcing military units on the Korean Peninsula, Pyongyang froze its plutonium production, agreed to let IAEA inspectors monitor the reactor site, and entered into bilateral negotiations.

The talks produced the October 1994 Agreed Framework, under which North Korea agreed to eventually dismantle its reactors, remain in the NPT, and implement full IAEA safeguards. In exchange, the United States promised to provide it with limited oil supplies, construct two peaceful light-water reactors for energy production, “move toward full normalization of political and economic relations,” and extend “formal assurances to [North Korea] against the threat or use of nuclear weapons by the U.S.”

“The way for Washington to move forward on Iran is to give Tehran good reason to relinquish its pursuit of nuclear weapons.”By 2002, the Agreed Framework had broken down, not only because Pyongyang was suspected of cheating but also because it believed that the United States, by delaying construction of the light-water reactors and failing to start normalizing relations, had not honored its side of the bargain. When confronted with evidence of its secret uranium program, in November 2002, Pyongyang took advantage of the fact that the U.S. military was tied down in preparations for the invasion of Iraq and withdrew from the NPT, kicked out the inspectors, and started reprocessing plutonium.

President Bush famously promised, in his 2002 State of the Union address, that the United States “will not permit the world’s most dangerous regimes to threaten us with the world’s most destructive weapons.” Yet when North Korea kicked out the IAEA inspectors, Secretary of State Colin Powell proclaimed that the situation was “not a crisis.” Bush repeatedly declared that the United States had “no intention of invading North Korea.” The point was not lost on Tehran.

If Washington is to offer security assurances to Tehran, it should do so soon (making the assurances contingent on Tehran’s not developing nuclear weapons), rather than offering them too late, as it did with North Korea (and thus making them contingent on Tehran’s getting rid of any existing nuclear weapons). As with North Korea, any deal with Iran must be structured in a series of steps, each offering a package of economic benefits (light-water reactors, aircraft parts, or status at the World Trade Organization) in exchange for constraints placed on Iran’s future nuclear development.

Most important, however, would be a reduction in the security threat that the United States poses to Iran. Given the need for Washington to have a credible deterrent against, say, terrorist attacks sponsored by Iran, a blanket security guarantee would be ill advised. But more limited guarantees, such as a commitment not to use nuclear weapons, could be effective. They would reassure Tehran and pave the way toward the eventual normalization of U.S.–Iranian relations while signaling to other states that nuclear weapons are not the be all and end all of security.

Peaceful coexistence does not require friendly relations, but it does mean exercising mutual restraint. Relinquishing the threat of regime change by force is a necessary and acceptable price for the United States to pay to stop Tehran from getting the bomb.

What nuclear threats do we face today? America went to war because its leadership believed Iraq had nuclear and other weapons of mass destruction. We are reminded daily of the potential dangers of Iran turning its quest for nuclear energy into a weapons capability. We are locked in a deep struggle to get North Korea to give up its nuclear status demonstrated in last fall’s test. Concerns about Russia’s nuclear arsenal are resurfacing. And, we are constantly reminded that we must wage America’s “war on terror” to avoid the nexus of international terrorism and nuclear weapons.

All nuclear threats are not alike. How do these and other nuclear threats compare in terms of severity or likelihood? And how can we effectively address them? It is useful to think of today’s nuclear threats at three levels. First is an all-out exchange of nuclear warheads—hundreds of them—that would destroy civilization as we know it. Next is a limited, but still disastrous exchange—tens of warheads —that would create levels of destruction not seen since World War II. The third level is the use of one or several nuclear bombs, which would threaten our way of life. Reframing the nuclear threat in this way allows us to gauge our level of concern and formulate meaningful preventive strategies.

An all-out nuclear exchange could occur today only between the United States and Russia, which still maintain many thousands of warheads in their nuclear inventories. A nuclear war between these two countries represents the only existential threat to the United States.

The end of the Cold War rendered this threat highly improbable but not impossible. An accidental or unauthorized launch followed by a response is still possible. To eliminate this threat, the United States and Russia should follow through on detargeting and commit to de-alerting their nuclear forces—to remove them from high alert status that allows a launch within minutes to pre-identified targets.

The two nations should commit to making major reductions in their nuclear stockpiles and eventually eliminating them. In the midst of the Cold War, President Ronald Reagan and Soviet General Secretary Mikhail Gorbachev reduced their stockpiles and even came close to an agreement to lead the world in abolishing nuclear weapons. Last January in a Wall Street Journal op-ed, George Shultz, William J. Perry, Henry Kissinger, and Sam Nunn called for a renewal of that vision by outlining steps to be taken now.

To move more rapidly toward much smaller numbers, I would add that leaders in both nations should undertake a zero-base nuclear assessment that would answer this question: If you were creating a stockpile from scratch today, how many weapons would you need to meet the current threat? Such a calculus would yield much lower numbers than trying to decide how many weapons you can live without. U.S. and Russian nuclear postures toward China should also carefully avoid provoking a Chinese nuclear buildup.

An exchange of tens of nuclear warheads is somewhat less improbable than nuclear war between Russia and the United States. But at this level, potential confrontations include nuclear exchanges between India and Pakistan, or between the United States and China—over Taiwan, for example, or on Russia’s southern border, or in the Middle East, between Israel and possibly Iran in the future. To limit the possibilities, it is crucial to stop more countries from acquiring nuclear weapons. The fewer fingers on the nuclear trigger, the better.

The United States should play a leading role in reinforcing the nuclear nonproliferation regime, centered on the 37-year-old Non-Proliferation Treaty (NPT), which allows a country to come within a whisker of building a bomb. A global expansion of nuclear power will pose additional challenges to the system. We need new rules of engagement for expanding nuclear power, including viable international controls on uranium enrichment and plutonium reprocessing.

To encourage non-nuclear weapon states to keep their end of the NPT bargain and refrain from acquiring the bomb, the five nuclear weapon states must show a greater commitment to working in good faith toward eventual elimination of their arsenals, as pledged under Article VI of the treaty.

Security guarantees from the United States and other nuclear weapon states can help curb some countries’ nuclear ambitions by alleviating fears of invasion by major world powers or by regional foes. India and Pakistan—two nuclear weapon states that aren’t parties to the NPT—should continue to pursue confidence-building measures to avoid miscalculation and potential nuclear war. We should help realize the nuclear-free zones that states are calling for in the Middle East, on the Korean peninsula, in Central Asia and in as many other regions as possible.

The United States and other states with nuclear weapons can also lower the risk of limited war by declaring a no-first-use policy, reserving nuclear weapons only as weapons of last resort.

The use of one or several nuclear bombs today is more likely than it was during the Cold War. If detonated in a big city, the damage would be catastrophic. Humankind would survive such a catastrophe, but it could gravely threaten our way of life. A country or a terrorist group in possession of a rudimentary nuclear bomb could deliver such a weapon in a van, boat, or plane. North Korea could do so, in desperation; Israel could do so in response to an existential threat; and under current doctrine, the United States or Russia could do so in response to a chemical, biological, or radiological attack. More likely, and hence of greater concern, is that terrorists would use a nuclear bomb, if they could get one.

The most likely route for terrorists to acquire a bomb is to devise one from stolen or diverted fissile materials. Theft or diversion of a ready-made weapon is far less likely.Building a rudimentary bomb is not easy but is judged to be within the capabilities of some sophisticated terrorist groups if they are able to obtain fissile materials.

Although it is widely recognized that keeping bomb materials out of terrorists’ hands is essential, the difficulty of doing so, especially from a technical standpoint, is not well understood. Only a few tens of kilograms of plutonium or highly enriched uranium are required for a bomb, yet almost 2 million kilograms of each exist in the world today, and some of it is not adequately secured. Securing these materials requires greater commitment to nuclear materials safeguards by all countries that possess them. It calls for greater urgency to protect and eventually eliminate highly enriched uranium in research reactors and facilities around the world. Bilateral or multilateral sting operations to intercept nuclear black market trade may help locate material already outside of state control. International cooperation in building databases and detection systems will improve nuclear forensics and attribution.

Each level of nuclear threat implies a different strategy of prevention. But three common aspects emerge as priorities for national and international policymaking:

• The fewer nuclear weapons, the better.
• The fewer fingers on a nuclear trigger, the better.
• Keeping fissile materials out of terrorists’ hands is essential.

Finally, this is not a problem for the United States alone to solve. It can only be solved through international cooperation.

Thank you Chairman Dorgan, Senator Domenici and distinguished members of the Committee for giving me the opportunity to comment on the National Nuclear Security Administration's Defense Nuclear Nonproliferation programs and its 2009 budget request. I have a written statement that I would like to submit for the record.

This morning I will summarize the three main points in my statement. My opinions have been shaped by 34 years at the Los Alamos National Laboratory and nearly 20 years of practicing nonproliferation with my feet on the ground in places like Russia, China, India, North Korea and Kazakhstan.  Much of this I have done with the strong support and encouragement of Senator Domenici.

1) The proliferation of nuclear weapons and weapons capability is growing. Today, we face a nuclear threat in North Korea, nuclear ambitions in Iran, a nuclear puzzle in Syria, recently nuclear-armed states in Pakistan and India, and an improved, but not satisfactory, nuclear security situation in Russia and other states of the former Soviet Union. The danger of nuclear terrorism is real. This is not a fight the United States can win alone. We cannot simply push the dangers beyond our borders. It is imperative to forge effective global partnerships to combat the threat of nuclear terrorism and the proliferation of nuclear weapons. Meeting these challenges requires diplomatic initiative and technical cooperation. The United States must lead international diplomacy and DOE/NNSA must provide technical leadership and capabilities. The NNSA has done a commendable job in nuclear threat reduction and combating nuclear proliferation. However, funds to support these activities are not commensurate with the magnitude or the urgency of the threat.

2) CTR began with Nunn-Lugar followed by Nunn-Lugar-Domenici legislation directed at the aftermath of the breakup of the Soviet Union. We must stay engaged with Russia and the other states of the Soviet Union. Much progress has been made, but more needs to be done. We have to change the nature of the partnership to one in which Russia carries more of the burden.

We should expand the cooperative reduction programs aggressively to other countries that require technical or financial assistance. The nuclear threat exists wherever nuclear materials exist. These materials cannot be eliminated, but they can be secured and safeguarded. We should more strongly support the International Atomic Energy Agency and provide more support to countries that try to implement UNSCR 1540 to prevent nuclear terrorism, for example.

We should enlist other nations such as China, India, and for that matter, Russia, to build a strong global partnership to prevent proliferation and combat nuclear terrorism. China and India have for the most part sat on the sidelines while the U.S. has led the fight. Russia has not engaged commensurate with its nuclear status. These efforts are particularly important if nuclear energy is to experience a real renaissance.

3) The hallmark of all of these efforts must be technology, partnership and in-country presence. The DOE/NNSA has in its laboratories the principal nuclear expertise in this country. It should be applauded for sending its technical experts around the world, often in very difficult situations (I met up with the DOE team in North Korea on a bitterly cold February day). However, both for structural reasons and budgetary shortfalls, that technical talent is slowing fading away. We do not have in place the necessary personnel recruitment or the working environment in the laboratories or the pipeline of students in our universities to replenish that talent. I strongly support the NNSA's Next Generation Safeguards Initiative, which is aimed at tackling this problem.

Mr. Chairman, when I first visited Russia's secret cities in 1992 shortly after the fall of the Soviet Union, I feared that its collapse may trigger a nuclear catastrophe. The fact that nothing really terrible has happened in the intervening 16 years is in great part due to the DOE/NNSA programs that your are considering today. We must now be just as innovative and creative to deal with the changing nuclear threat today.

In my statement I also mention the implications of my recent trips to North Korea and to India. However, since I am out of time, I will need to leave those for your questions.

Thank you for your attention.

Nuclear weapons today present tremendous dangers, but also an historic opportunity. U.S. leadership will be required to take the world to the next stage -- to a solid consensus for reversing reliance on nuclear weapons globally as a vital contribution to preventing their proliferation into potentially dangerous hands, and ultimately ending them as a threat to the world.

Nuclear weapons were essential to maintaining international security during the Cold War because they were a means of deterrence. The end of the Cold War made the doctrine of mutual Soviet-American deterrence obsolete. Deterrence continues to be a relevant consideration for many states with regard to threats from other states. But reliance on nuclear weapons for this purpose is becoming increasingly hazardous and decreasingly effective.

North Korea's recent nuclear test and Iran's refusal to stop its program to enrich uranium -- potentially to weapons grade -- highlight the fact that the world is now on the precipice of a new and dangerous nuclear era. Most alarmingly, the likelihood that non-state terrorists will get their hands on nuclear weaponry is increasing. In today's war waged on world order by terrorists, nuclear weapons are the ultimate means of mass devastation. And non-state terrorist groups with nuclear weapons are conceptually outside the bounds of a deterrent strategy and present difficult new security challenges.

Apart from the terrorist threat, unless urgent new actions are taken, the U.S. soon will be compelled to enter a new nuclear era that will be more precarious, psychologically disorienting, and economically even more costly than was Cold War deterrence. It is far from certain that we can successfully replicate the old Soviet-American "mutually assured destruction" with an increasing number of potential nuclear enemies world-wide without dramatically increasing the risk that nuclear weapons will be used. New nuclear states do not have the benefit of years of step-by-step safeguards put in effect during the Cold War to prevent nuclear accidents, misjudgments or unauthorized launches. The United States and the Soviet Union learned from mistakes that were less than fatal. Both countries were diligent to ensure that no nuclear weapon was used during the Cold War by design or by accident. Will new nuclear nations and the world be as fortunate in the next 50 years as we were during the Cold War?

Leaders addressed this issue in earlier times. In his "Atoms for Peace" address to the United Nations in 1953, Dwight D. Eisenhower pledged America's "determination to help solve the fearful atomic dilemma -- to devote its entire heart and mind to find the way by which the miraculous inventiveness of man shall not be dedicated to his death, but consecrated to his life." John F. Kennedy, seeking to break the logjam on nuclear disarmament, said, "The world was not meant to be a prison in which man awaits his execution."

Rajiv Gandhi, addressing the U.N. General Assembly on June 9, 1988, appealed, "Nuclear war will not mean the death of a hundred million people. Or even a thousand million. It will mean the extinction of four thousand million: the end of life as we know it on our planet earth. We come to the United Nations to seek your support. We seek your support to put a stop to this madness."

Ronald Reagan called for the abolishment of "all nuclear weapons," which he considered to be "totally irrational, totally inhumane, good for nothing but killing, possibly destructive of life on earth and civilization." Mikhail Gorbachev shared this vision, which had also been expressed by previous American presidents.

Although Reagan and Mr. Gorbachev failed at Reykjavik to achieve the goal of an agreement to get rid of all nuclear weapons, they did succeed in turning the arms race on its head. They initiated steps leading to significant reductions in deployed long- and intermediate-range nuclear forces, including the elimination of an entire class of threatening missiles.

What will it take to rekindle the vision shared by Reagan and Mr. Gorbachev? Can a world-wide consensus be forged that defines a series of practical steps leading to major reductions in the nuclear danger? There is an urgent need to address the challenge posed by these two questions.

The Non-Proliferation Treaty (NPT) envisioned the end of all nuclear weapons. It provides (a) that states that did not possess nuclear weapons as of 1967 agree not to obtain them, and (b) that states that do possess them agree to divest themselves of these weapons over time. Every president of both parties since Richard Nixon has reaffirmed these treaty obligations, but non-nuclear weapon states have grown increasingly skeptical of the sincerity of the nuclear powers.

Strong non-proliferation efforts are under way. The Cooperative Threat Reduction program, the Global Threat Reduction Initiative, the Proliferation Security Initiative and the Additional Protocols are innovative approaches that provide powerful new tools for detecting activities that violate the NPT and endanger world security. They deserve full implementation. The negotiations on proliferation of nuclear weapons by North Korea and Iran, involving all the permanent members of the Security Council plus Germany and Japan, are crucially important. They must be energetically pursued.

But by themselves, none of these steps are adequate to the danger. Reagan and General Secretary Gorbachev aspired to accomplish more at their meeting in Reykjavik 20 years ago -- the elimination of nuclear weapons altogether. Their vision shocked experts in the doctrine of nuclear deterrence, but galvanized the hopes of people around the world. The leaders of the two countries with the largest arsenals of nuclear weapons discussed the abolition of their most powerful weapons.

* * *

What should be done? Can the promise of the NPT and the possibilities envisioned at Reykjavik be brought to fruition? We believe that a major effort should be launched by the United States to produce a positive answer through concrete stages.

First and foremost is intensive work with leaders of the countries in possession of nuclear weapons to turn the goal of a world without nuclear weapons into a joint enterprise. Such a joint enterprise, by involving changes in the disposition of the states possessing nuclear weapons, would lend additional weight to efforts already under way to avoid the emergence of a nuclear-armed North Korea and Iran.

The program on which agreements should be sought would constitute a series of agreed and urgent steps that would lay the groundwork for a world free of the nuclear threat. Steps would include:

• Changing the Cold War posture of deployed nuclear weapons to increase warning time and thereby reduce the danger of an accidental or unauthorized use of a nuclear weapon.

• Continuing to reduce substantially the size of nuclear forces in all states that possess them.

• Eliminating short-range nuclear weapons designed to be forward-deployed.

• Initiating a bipartisan process with the Senate, including understandings to increase confidence and provide for periodic review, to achieve ratification of the Comprehensive Test Ban Treaty, taking advantage of recent technical advances, and working to secure ratification by other key states.

• Getting control of the uranium enrichment process, combined with the guarantee that uranium for nuclear power reactors could be obtained at a reasonable price, first from the Nuclear Suppliers Group and then from the International Atomic Energy Agency (IAEA) or other controlled international reserves. It will also be necessary to deal with proliferation issues presented by spent fuel from reactors producing electricity.

• Halting the production of fissile material for weapons globally; phasing out the use of highly enriched uranium in civil commerce and removing weapons-usable uranium from research facilities around the world and rendering the materials safe.

• Redoubling our efforts to resolve regional confrontations and conflicts that give rise to new nuclear powers.

 
Achieving the goal of a world free of nuclear weapons will also require effective measures to impede or counter any nuclear-related conduct that is potentially threatening to the security of any state or peoples.

Reassertion of the vision of a world free of nuclear weapons and practical measures toward achieving that goal would be, and would be perceived as, a bold initiative consistent with America's moral heritage. The effort could have a profoundly positive impact on the security of future generations. Without the bold vision, the actions will not be perceived as fair or urgent. Without the actions, the vision will not be perceived as realistic or possible.

We endorse setting the goal of a world free of nuclear weapons and working energetically on the actions required to achieve that goal, beginning with the measures outlined above.

Mr. Shultz, a distinguished fellow at the Hoover Institution at Stanford, was secretary of state from 1982 to 1989. Mr. Perry was secretary of defense from 1994 to 1997. Mr. Kissinger, chairman of Kissinger Associates, was secretary of state from 1973 to 1977. Mr. Nunn is former chairman of the Senate Armed Services Committee.

A conference organized by Mr. Shultz and Sidney D. Drell was held at Hoover to reconsider the vision that Reagan and Mr. Gorbachev brought to Reykjavik. In addition to Messrs. Shultz and Drell, the following participants also endorse the view in this statement: Martin Anderson, Steve Andreasen, Michael Armacost, William Crowe, James Goodby, Thomas Graham Jr., Thomas Henriksen, David Holloway, Max Kampelman, Jack Matlock, John McLaughlin, Don Oberdorfer, Rozanne Ridgway, Henry Rowen, Roald Sagdeev and Abraham Sofaer.

The accelerating spread of nuclear weapons, nuclear know-how and nuclear material has brought us to a nuclear tipping point. We face a very real possibility that the deadliest weapons ever invented could fall into dangerous hands.

The steps we are taking now to address these threats are not adequate to the danger. With nuclear weapons more widely available, deterrence is decreasingly effective and increasingly hazardous.

One year ago, in an essay in this paper, we called for a global effort to reduce reliance on nuclear weapons, to prevent their spread into potentially dangerous hands, and ultimately to end them as a threat to the world. The interest, momentum and growing political space that has been created to address these issues over the past year has been extraordinary, with strong positive responses from people all over the world.

Mikhail Gorbachev wrote in January 2007 that, as someone who signed the first treaties on real reductions in nuclear weapons, he thought it his duty to support our call for urgent action: "It is becoming clearer that nuclear weapons are no longer a means of achieving security; in fact, with every passing year they make our security more precarious."

In June, the United Kingdom's foreign secretary, Margaret Beckett, signaled her government's support, stating: "What we need is both a vision -- a scenario for a world free of nuclear weapons -- and action -- progressive steps to reduce warhead numbers and to limit the role of nuclear weapons in security policy. These two strands are separate but they are mutually reinforcing. Both are necessary, but at the moment too weak."

We have also been encouraged by additional indications of general support for this project from other former U.S. officials with extensive experience as secretaries of state and defense and national security advisors. These include: Madeleine Albright, Richard V. Allen, James A. Baker III, Samuel R. Berger, Zbigniew Brzezinski, Frank Carlucci, Warren Christopher, William Cohen, Lawrence Eagleburger, Melvin Laird, Anthony Lake, Robert McFarlane, Robert McNamara and Colin Powell.

Inspired by this reaction, in October 2007, we convened veterans of the past six administrations, along with a number of other experts on nuclear issues, for a conference at Stanford University's Hoover Institution. There was general agreement about the importance of the vision of a world free of nuclear weapons as a guide to our thinking about nuclear policies, and about the importance of a series of steps that will pull us back from the nuclear precipice.

The U.S. and Russia, which possess close to 95% of the world's nuclear warheads, have a special responsibility, obligation and experience to demonstrate leadership, but other nations must join.

Some steps are already in progress, such as the ongoing reductions in the number of nuclear warheads deployed on long-range, or strategic, bombers and missiles. Other near-term steps that the U.S. and Russia could take, beginning in 2008, can in and of themselves dramatically reduce nuclear dangers. They include:

• Extend key provisions of the Strategic Arms Reduction Treaty of 1991. Much has been learned about the vital task of verification from the application of these provisions. The treaty is scheduled to expire on Dec. 5, 2009. The key provisions of this treaty, including their essential monitoring and verification requirements, should be extended, and the further reductions agreed upon in the 2002 Moscow Treaty on Strategic Offensive Reductions should be completed as soon as possible.
• Take steps to increase the warning and decision times for the launch of all nuclear-armed ballistic missiles, thereby reducing risks of accidental or unauthorized attacks. Reliance on launch procedures that deny command authorities sufficient time to make careful and prudent decisions is unnecessary and dangerous in today's environment. Furthermore, developments in cyber-warfare pose new threats that could have disastrous consequences if the command-and-control systems of any nuclear-weapons state were compromised by mischievous or hostile hackers. Further steps could be implemented in time, as trust grows in the U.S.-Russian relationship, by introducing mutually agreed and verified physical barriers in the command-and-control sequence.
• Discard any existing operational plans for massive attacks that still remain from the Cold War days. Interpreting deterrence as requiring mutual assured destruction (MAD) is an obsolete policy in today's world, with the U.S. and Russia formally having declared that they are allied against terrorism and no longer perceive each other as enemies.
• Undertake negotiations toward developing cooperative multilateral ballistic-missile defense and early warning systems, as proposed by Presidents Bush and Putin at their 2002 Moscow summit meeting. This should include agreement on plans for countering missile threats to Europe, Russia and the U.S. from the Middle East, along with completion of work to establish the Joint Data Exchange Center in Moscow. Reducing tensions over missile defense will enhance the possibility of progress on the broader range of nuclear issues so essential to our security. Failure to do so will make broader nuclear cooperation much more difficult.
• Dramatically accelerate work to provide the highest possible standards of security for nuclear weapons, as well as for nuclear materials everywhere in the world, to prevent terrorists from acquiring a nuclear bomb. There are nuclear weapons materials in more than 40 countries around the world, and there are recent reports of alleged attempts to smuggle nuclear material in Eastern Europe and the Caucasus. The U.S., Russia and other nations that have worked with the Nunn-Lugar programs, in cooperation with the International Atomic Energy Agency (IAEA), should play a key role in helping to implement United Nations Security Council Resolution 1540 relating to improving nuclear security -- by offering teams to assist jointly any nation in meeting its obligations under this resolution to provide for appropriate, effective security of these materials.

As Gov. Arnold Schwarzenegger put it in his address at our October conference, "Mistakes are made in every other human endeavor. Why should nuclear weapons be exempt?" To underline the governor's point, on Aug. 29-30, 2007, six cruise missiles armed with nuclear warheads were loaded on a U.S. Air Force plane, flown across the country and unloaded. For 36 hours, no one knew where the warheads were, or even that they were missing.

• Start a dialogue, including within NATO and with Russia, on consolidating the nuclear weapons designed for forward deployment to enhance their security, and as a first step toward careful accounting for them and their eventual elimination. These smaller and more portable nuclear weapons are, given their characteristics, inviting acquisition targets for terrorist groups.
• Strengthen the means of monitoring compliance with the nuclear Non-Proliferation Treaty (NPT) as a counter to the global spread of advanced technologies. More progress in this direction is urgent, and could be achieved through requiring the application of monitoring provisions (Additional Protocols) designed by the IAEA to all signatories of the NPT.
• Adopt a process for bringing the Comprehensive Test Ban Treaty (CTBT) into effect, which would strengthen the NPT and aid international monitoring of nuclear activities. This calls for a bipartisan review, first, to examine improvements over the past decade of the international monitoring system to identify and locate explosive underground nuclear tests in violation of the CTBT; and, second, to assess the technical progress made over the past decade in maintaining high confidence in the reliability, safety and effectiveness of the nation's nuclear arsenal under a test ban. The Comprehensive Test Ban Treaty Organization is putting in place new monitoring stations to detect nuclear tests -- an effort the U.S should urgently support even prior to ratification.

In parallel with these steps by the U.S. and Russia, the dialogue must broaden on an international scale, including non-nuclear as well as nuclear nations.

Key subjects include turning the goal of a world without nuclear weapons into a practical enterprise among nations, by applying the necessary political will to build an international consensus on priorities. The government of Norway will sponsor a conference in February that will contribute to this process.

Another subject: Developing an international system to manage the risks of the nuclear fuel cycle. With the growing global interest in developing nuclear energy and the potential proliferation of nuclear enrichment capabilities, an international program should be created by advanced nuclear countries and a strengthened IAEA. The purpose should be to provide for reliable supplies of nuclear fuel, reserves of enriched uranium, infrastructure assistance, financing, and spent fuel management -- to ensure that the means to make nuclear weapons materials isn't spread around the globe.

There should also be an agreement to undertake further substantial reductions in U.S. and Russian nuclear forces beyond those recorded in the U.S.-Russia Strategic Offensive Reductions Treaty. As the reductions proceed, other nuclear nations would become involved.

President Reagan's maxim of "trust but verify" should be reaffirmed. Completing a verifiable treaty to prevent nations from producing nuclear materials for weapons would contribute to a more rigorous system of accounting and security for nuclear materials.

We should also build an international consensus on ways to deter or, when required, to respond to, secret attempts by countries to break out of agreements.

Progress must be facilitated by a clear statement of our ultimate goal. Indeed, this is the only way to build the kind of international trust and broad cooperation that will be required to effectively address today's threats. Without the vision of moving toward zero, we will not find the essential cooperation required to stop our downward spiral.

In some respects, the goal of a world free of nuclear weapons is like the top of a very tall mountain. From the vantage point of our troubled world today, we can't even see the top of the mountain, and it is tempting and easy to say we can't get there from here. But the risks from continuing to go down the mountain or standing pat are too real to ignore. We must chart a course to higher ground where the mountaintop becomes more visible.

Mr. Shultz was secretary of state from 1982 to 1989. Mr. Perry was secretary of defense from 1994 to 1997. Mr. Kissinger was secretary of state from 1973 to 1977. Mr. Nunn is former chairman of the Senate Armed Services Committee.

The following participants in the Hoover-NTI conference also endorse the view in this statement: General John Abizaid, Graham Allison, Brooke Anderson, Martin Anderson, Steve Andreasen, Mike Armacost, Bruce Blair, Matt Bunn, Ashton Carter, Sidney Drell, General Vladimir Dvorkin, Bob Einhorn, Mark Fitzpatrick, James Goodby, Rose Gottemoeller, Tom Graham, David Hamburg, Siegfried Hecker, Tom Henriksen, David Holloway, Raymond Jeanloz, Ray Juzaitis, Max Kampelman, Jack Matlock, Michael McFaul, John McLaughlin, Don Oberdorfer, Pavel Podvig, William Potter, Richard Rhodes, Joan Rohlfing, Harry Rowen, Scott Sagan, Roald Sagdeev, Abe Sofaer, Richard Solomon, and Philip Zelikow.

The International Studies Association has awarded CISAC Co-Director Scott Sagan the 2008 Deborah “Misty” Gerner Innovative Teaching in International Studies Award for his simulation exercise that he has taught to Stanford undergraduates for the last decade through PS 114S “%course1%.” The Nuclear Non-Proliferation Treaty (NPT) and United Nations Security Council (UNSC) simulation, which Sagan developed, helps students understand the complexities of international negotiations as they relate to national interests. The Gerner award recognizes an instructor “who has developed new or significantly refined effective teaching in the discipline” with particular emphasis on “pedagogy that engages students with issues of war [and] peace.”

Under Sagan’s guidance, the simulation has been successfully exported to Columbia, Dartmouth, Duke, Reed College and the University of California-Berkeley. “Students tell me the simulation is the highlight of their academic experience,” said Ron Hassner, an assistant professor of political science at Berkeley who is a CISAC visiting professor.

As many as 150 students, acting as delegates to an international negotiation on a nuclear weapons issue, participate in the three-day simulation. Sagan tries to make the exercise as realistic as possible—students are required to dress formally and adopt the language and posture of diplomats during private negotiations and plenary meetings. In preparation, students research and write memoranda outlining the goals that should guide their assigned country’s behavior, and what strategies their delegation should adopt to achieve its goals. Delegates also receive briefings and guidance from heads of state who are played by faculty and visiting scholars with experience in the real world of diplomacy and arms control negotiation.

Guest participants have included Ambassador Thomas Graham, President Bill Clinton’s special representative for arms control, nonproliferation, and disarmament; Ambassador James Goodby, Clinton’s special representative for the security and dismantlement of nuclear weapons, chief negotiator for nuclear threat reduction agreements, and vice chair of the U.S. delegation to the Strategic Arms Reduction Treaty talks; and Keith Hansen, a member of the U.S. negotiating team for the Comprehensive Test Ban Treaty. Traditionally, a law student has played the role of a UNSC undersecretary for legal affairs, to guide students through the process of drafting an international agreement. “Aside from enriching the learning experience, contact with these diplomats also contributes a solemnity and realism to the simulation,” said CISAC visiting Professor Ron Hassner, a Berkeley assistant professor of political science who teaches the class.

At Berkeley, almost 500 students have participated in Sagan’s simulations. Three years ago, Hassner said, Graham was so impressed by the students’ achievements during the exercise that he invited two student “ambassadors” to join him at the May 2005 NPT review conference in New York City. “These students had never been on an airplane, let alone visited the United Nations,” Hassner said. “Students tell me the simulation was the highlight of their academic experience.”

The award is named in honor of Deborah J. “Misty” Gerner, a University of Kansas political science professor and an internationally noted expert in Middle Eastern conflict who died of cancer in 2006. She was 50 years old.

For more information about the award: Deborah Gerner Teaching Award.