Signals intelligence is one of the two gems of 20th-century intelligence. We will examine the field both structurally and historically, focusing on the changes in the field and the directions in which it is evolving.

Whitfield Diffie is the Chief Security Officer of Sun Microsystems, where he has worked since 1991. Prior to this, Diffie held positions at Bell-Northern Research, Stanford University, and Mitre. Diffie is best known for his 1975 discovery of the concept of public key cryptography. Since the 1990s he has worked primarily on the public policy aspects of security. He is the author, along with Susan Landau, of the book Privacy on the Line, which examines the politics of wiretapping and encryption.

This presentation aims at answering questions regarding India's capability to produce weapons-grade plutonium and the impact of the U.S.-India deal, or the lack thereof, on India's nuclear weapons program. The basic answers provided here are that the U.S.-India deal does not significantly affect the military plutonium production program. Any reduction in weapons-grade plutonium production could be compensated for by any of several methods that would, however, require government decision and budget allocation. The uranium constraint is a serious long-term restraint, particularly, on the civilian power program, which is the major national consumer of natural uranium. There are ways of alleviating and ultimately resolving this constraint, relying on India's domestic uranium resources, which would more than suffice for the remaining life of all the currently existing and planned reactors, if mining and milling capacity could be commissioned on time. The U.S.-India deal would alleviate the near-term uranium supply-demand mismatch by allowing uranium imports into the country. In the meantime, India is pursuing several strategies discussed here to ease its impending uranium supply crunch.

Chaim Braun is a vice president of Altos Management Partners, Inc., and a CISAC science fellow and affiliate. He is a member of the Near-Term Deployment and the Economic Cross-Cut Working Groups of the Department of Energy (DOE) Generation IV Roadmap study. He conducted several nuclear economics-related studies for the DOE Nuclear Energy Office, the Energy Information Administration, the Electric Power Research Institute, the Nuclear Energy Institute, Non-Proliferation Trust International, and others. Braun has worked as a member of Bechtel Power Corporation's Nuclear Management Group, and led studies on power plant performance and economics used to support maintenance services. Braun has worked on a study of safeguarding the Agreed Framework in North Korea, was the co-leader of a NATO Study of Terrorist Threats to Nuclear Power Plants, led CISAC's Summer Study on Terrorist Threats to Research Reactors, and most recently co-authored an article with former CISAC Co-Director Chris Chyba on nuclear proliferation rings.

This presentation provides an overview of the history of US satellite-based reconnaissance as has been publicly revealed by the US Government to date. Extrapolating from there, it will transition to the evolutionary and revolutionary role that commercial satellite imagery is now playing on the international stage in proving a heretofore-unimaginable basis for greater global transparency and the way it has helped, and will continue to help, to detect and monitor undeclared unconventional weapons related facilities and activities. In addition, new geospatial tools, which draw heavily upon commercial satellite imagery as well as augmenting it, have also become available over the internet. Among those Geospatial tools, "Digital Virtual Globes" (i.e., Google Earth, Virtual Earth, etc.) not only provide a much improved mapping capability over previously used simple plan-view line drawings used by various international inspection organizations such as the IAEA, but the offer much improved visualization of known and inspected sites. Such digital globes also provide a new, essentially free means to conduct broad area baseline search for possible "clandestine" sites...either allege through open source leads; identified on internet blogs and wiki layers with input from a "free" cadre of global browsers and/or by knowledgeable local citizens that can include ground photos and maps; or by other initiatives based on existing country program knowledge. The digital globes also provide highly accurate terrain mapping for better overall geospatial context and allow detailed 3-D perspectives of all sites or areas of interest. 3-D modeling software, when used in conjunction with these digital globes can significantly enhance individual building characterization and visualization (including interiors), allowing for better international inspector training through pre-inspection walk-arounds or fly-around, and perhaps better IAEA safeguard decision making. In sum, these new geospatial visualization aids are ideal for international inspector training and orientation, as well as site characterization, monitoring and verification. But perhaps just as significantly, these new geospatial tools also now make it possible for anyone to conduct his or her own satellite-based reconnaissance for any application from the comfort of home, at a wi-fi enabled coffee shop, or even on the beach at a tropical island resort.

Frank Pabian is a Senior Nonproliferation Infrastructure Analyst at Los Alamos National Laboratory who has over 35 years experience in the nuclear nonproliferation field including six years with the Office of Imagery Analysis and 18 years with Lawrence Livermore National Laboratory's "Z" Division. Frank also served as a Chief Inspector for the IAEA during UN inspections in Iraq from 1996-1998 focusing on "Capable Sites." In December 2002, Frank served as one of the first US nuclear inspectors back in Iraq with UN/IAEA. While at Los Alamos, Frank has developed and presented commercial satellite imagery based briefings on foreign clandestine nuclear facilities to the International Nuclear Suppliers Group, the IAEA, NATO, and the Foreign Ministries of China and India on behalf of the NNSA and STATE.

The US military is very dependent on satellites. The existing satellite architecture used has single point failures to existing recognized threats. A concept that could provide a significant part of the solution of how the US as well as other states can overcome such vulnerabilities is discussed. The prescription centers on a new satellite architecture --the 'Multi-tiered Microsatellite Constellation Architecture' (MMCA) -- which reduces risks to space assets by increasing system redundancy, modularity and dispersion through the use of microsatellite constellations in several orbital tiers. An example constellation design is given for each of the five major contemporary military space uses -- early warning, reconnaissance, signals intelligence, military communications and navigation. The scheme is placed in the context of other complimentary elements that are likely to be necessary to enable security of space assets, in particular: protection of space systems; responsive space access; terrestrial alternatives; space surveillance; treaties; and verification means thereof. Since the Chinese anti-satellite (ASAT) test, the response of the US military in part has been to re-double efforts to develop Operationally Responsive Space (ORS). Whilst ORS is a key ingredient, it must be complemented by a more secure satellite architecture. In addition to dealing with satellite vulnerabilities, the talk will discuss issues relating to space-based weapons and their effectiveness.

William Marshall is based in the Small Spacecraft Office at NASA's Ames Research Center in California. He holds a PhD in Physics from the University of Oxford, U.K., where his thesis centred on an experimental proposal to create macroscopic mass quantum superposition states. He conducted two years of his research at the University of California in Santa Barbara. He holds a degree in Physics with Space Science and Technology (MPhys) from the University of Leicester, UK. He has held placements at the European Space Agency, NASA's Jet Propulsion Laboratory, Marshall Space Flight Center and the Parliamentary Office of Science and Technology (POST) in London. Will's work at NASA centers on mission planning, in particular trajectory analysis, and spacecraft testing for a variety of microsatellite missions, focusing on lunar orbiters and landers. He is working on a project on the topic of space traffic management. Will serves on the Governance Group of the Space Security Index research project and also holds positions of non-resident fellow at both the Space Policy Institute (SPI) of the George Washington University and the Belfer Centre for Science and International Affairs, Kennedy School of Government, Harvard University. In these capacities, Will has published on strategic benefits and costs of the deployment of space weapons and more broadly the increasingly important role that space is playing in global security issues. Will is the Global co-Chair of the Space Generation Advisory Council to the United Nations Programme on Space Applications (SGAC), which represents the views of students and young professionals interested in space to the UN and space agencies around the world.

This summer the DOE Energy Information Agency released its study of the McCain/Lieberman Climate Stewardship bill, concluding that the largest single effect of these carbon controls would be the construction of 145 gigawatts of new U.S. nuclear capacity by 2030, more than doubling the existing 100 gigawatts. From the perspective of the early 1990's, today's resurgent interest in nuclear energy may appear surprising. This seminar will review what changed over the last 20 years that returned nuclear energy to broad public attention today, and will discuss the range of possible nuclear energy futures and their implications for security and the environment.

Per F. Peterson is Professor and previous chair of the Department of Nuclear Engineering at the University of California, Berkeley. He received his BS in Mechanical Engineering at the University of Nevada, Reno, in 1982. After working at Bechtel on high-level radioactive waste processing from 1982 to 1985, he received a MS degree in Mechanical Engineering at the University of California, Berkeley in 1986 and a PhD in 1988. He was a JSPS Fellow at the Tokyo Institute of Technology from 1989 to 1990 and a National Science Foundation Presidential Young Investigator from 1990 to 1995. He is past chairman of the Thermal Hydraulics Division (1996-1997) and a Fellow (2002) of the American Nuclear Society, a recipient of the Fusion Power Associates Excellence in Fusion Engineering Award (1999), and has served as editor for three journals.

Professor Peterson's work focuses on applications in energy and environmental systems, including passive reactor safety systems, inertial fusion energy, and nuclear materials management and security. His research interests focus on thermal hydraulics, heat and mass transfer, nonproliferation and nuclear security. He is author of over 100 archival journal articles and over 130 conference publications on these topics.

David Montague, an independent consultant, is retired President of the Missile Systems Division at Lockheed Martin Missiles and Space. A member of the NAE, his background is in military weapon systems, particularly in regard to guidance and control of submarine-launched weaponry. His experience has focused on both tactical and strategic strike systems, as well as on the requirements for, development of, and policy issues related to defense systems to protect against weapons of mass destruction. His recent research interests include the area of electric vehicles powered by battery or fuel cells integrated with induction drive high-speed highway automatic headway and vehicle control. Mr. Montague is a fellow of the American Institute of Aeronautics and Astronautics, and has served on numerous scientific boards and advisory committees, to include task forces for both the U.S. Army and Defense Science Board. He currently serves as a member of the Naval Studies Board.

Scott Sagan (speaker) is a professor of political science and co-director of Stanford's Center for International Security and Cooperation. Before joining the Stanford faculty, Sagan was a lecturer in the Department of Government at Harvard University and served as a special assistant to the director of the Organization of the Joint Chiefs of Staff in the Pentagon. He has also served as a consultant to the office of the Secretary of Defense and at the Sandia National Laboratory and the Los Alamos National Laboratory. Sagan is the author of Moving Targets: Nuclear Strategy and National Security (Princeton University Press, 1989), The Limits of Safety: Organizations, Accidents, and Nuclear Weapons (Princeton University Press, 1993), and with co-author Kenneth N. Waltz, The Spread of Nuclear Weapons: A Debate Renewed (W.W. Norton, 2002). He is the co-editor of Peter R. Lavoy, Scott D. Sagan, and James L. Wirtz, Planning the Unthinkable (Cornell University Press, 2000). Sagan was the recipient of Stanford University's 1996 Hoagland Prize for Undergraduate Teaching and the 1998 Dean's Award for Distinguished Teaching. As part of CISAC's mission of training the next generation of security specialists he and Stephen Stedman founded Stanford's Interschool Honors Program in International Security Studies in 2000. His recent articles include "How to Keep the Bomb From Iran," in Foreign Affairs (September-October 2006); "The Madman Nuclear Alert: Secrecy, Signaling, and Safety in October 1969" co-written by Jeremi Suri and published in International Security in spring 2003; and "The Problem of Redundancy Problem: Will More Nuclear Security Forces Produce More Nuclear Security?" published in Risk Analysis in 2004. In addition to these works, Sagan is also finishing a collection of essays for a book tentatively entitled Inside Nuclear South Asia.

Paul Kapur (discussant) is a visiting professor at CISAC, on leave from the U.S. Naval War College, where he is an associate professor in the Department of Strategic Research. Before joining the War College in 2006, Kapur was visiting professor at CISAC and assistant professor of Government at Claremont McKenna College. He also served as a postdoctoral fellow at the University of Chicago, where he received his PhD in political science. His research interests include the strategic effects of nuclear weapons proliferation, deterrence theory, and the international security environment in South Asia. Kapur is author of Dangerous Deterrent: Nuclear Weapons Proliferation and Conflict in South Asia (Stanford University Press, 2007). His work has also appeared in journals such as International Security, Security Studies, Asian Survey, and Asian Security.

Brent Durbin (speaker) is a PhD candidate at the University of California, Berkeley, and a predoctoral fellow at CISAC. He is also a 2007-2008 dissertation fellow at the Institute for Global Conflict and Cooperation. In his dissertation, Durbin explains the political and policy dynamics of U.S. intelligence adaptation. His broader research interests fall at the intersection of organization theory, decision-making, and national security policy. Durbin has served as a visiting fellow at the University of Cambridge (UK) and The George Washington University, and as a senior staff member for U.S. Senator Patty Murray. He holds degrees from Oberlin College, Harvard University, and the University of California, Berkeley.

Paul Stockton (discussant) is a senior research scholar at CISAC. He was formerly the associate provost at the Naval Postgraduate School in Monterey, California, and was the former director of its Center for Homeland Defense and Security. His teaching and research focuses on how U.S. security institutions respond to changes in the threat (including the rise of terrorism), and the interaction of Congress and the Executive branch in restructuring national security budgets, policies and institutional arrangements. Stockton joined the faculty of the Naval Postgraduate School (NPS) in August 1990. From 1995 until 2000, he served as director of NPS's Center for Civil-Military Relations. From 2000-2001, he founded and served as the acting dean of NPS's School of International Graduate Studies. He was appointed associate provost in 2001.