For 50 years, the Republicans have been accusing the Democrats of being soft on national security.

It is not patriotic to commit young Americans to war unless our national security clearly requires it.

The truth is that I oppose the Iraq war, just as I opposed the Vietnam War, because these two conflicts have weakened the U.S. and diminished our standing in the world and our national security.

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.