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

I don't usually comment on columnists' ideas of what I'm thinking. That's a dangerous game to get into.

The consequence could be that we would have an escalation that would take place that would not only involve many lives, but I think it could consume the Middle East in a confrontation and a conflict that we would regret.

Sexual assault has no place in the military. It is a violation of everything that the US military stands for.

Well, the United States is a Pacific power. And we have always had a presence in the Pacific.

The president is out there today trying to talk about health care, and the reality is nobody cares about what he's saying on health care because this news is consuming everything. No president could tolerate that or should tolerate it.

It doesn't make a lot of sense for us to borrow money from the Chinese to go give to another country for humanitarian aid. We ought to get the Chinese to take care of the people.