Chuck Hagel: “I will hold all commanders responsible for this issue.”

It is a responsibility of the Congress.

It is a measurement. But I don't think it is the measurement. I mean, I was in a war with a lot of body counts every day. We lost everyone.

When the National Guard opened up on students and killed students, partly because they weren't trained, they panicked.

Our nuclear deterrent plays a critical role in assuring U.S. national security.