When you aggregate those layers, it is very difficult for someone to introduce something that causes a national security risk to this country. It is hardly a house of cards.

The issue of human rights is a national security issue for us and while we have lots of issues to address with North Korea and we have lots of issues to address with China, the prism through which we evaluate their conduct is very much a human rights prism.

The academy has been dealing with the issue of scientific openness versus national security since 9/11,

The Bush campaign was all about national security. [Campaign members] implied ... that a vote for Kerry would put you in danger.

We regularly hold terrorists and spies accountable in court while safeguarding both national security and due process. We are confident in the system of justice to try these cases under the procedures adopted by Congress and regularly upheld by the courts.

This, post 9/11, is a situation that we can't explain or can't afford from a national security standpoint,