I don't think I should penalize people who were doing their duty.

I think my best advice would be to separate Donald Trump, the president of the United States from whatever investigation is being conducted by the FBI. I mean, there is something to be said, frankly, about the need for the appointment of an independent prosecutor because the American people are entitled to have a full review of what happened as a result of what the Russians did during our election.

The area of climate change has a dramatic impact on national security.

Winning in Afghanistan is having a country that is stable enough to ensure that there is no safe haven for Al Qaida or for a militant Taliban that welcomes Al Qaida. That's really the measure of success for the United States.

These days, it takes only seconds - seconds - for a picture, a photo, to suddenly become an international headline.

An aggressor nation or extremist group could gain control of critical switches and derail passenger trains, or trains loaded with lethal chemicals.

I'm going to give people the benefit of the doubt.