Everyone says an open, transparent government is the hallmark of a healthy democracy. But most reasonable people would agree that there must be limits to how transparent government can be. After all, no one wants sensitive national security secrets to fall into the wrong hands. When information shared in the name of good governance can be exploited by terrorists, many would argue the public's right to know pales in comparison to the public's need for protection.

But are openness and security really opposing values? When government officials curb access to information, they cut themselves off from the brain power and analytical skills of a huge community of scientists, engineers, and security experts who are often far better at identifying threats, weaknesses, and solutions than any government agency.