I think Obama sees everything through one lens. Doing nothing in the face of the slaughter in Syria is not only shameful, it is unrealistic. This approach leaves Syria as a broken country and a breeding ground for extremists for decades.

It's hard to conceive that it would take more forces to provide stability in post-Saddam Iraq than it would take to conduct the war itself and secure the surrender of Saddam's security forces and his army. Hard to imagine.

People change their habits. I know Americans who don't go to Paris because they think it is too dangerous.

Firing employees, that's unfortunately part of doing business.

One of the things that ultimately led me to leave mathematics and go into political science was thinking I could prevent nuclear war.

Donald Trump seems to be unconcerned about the Russian aggression in Ukraine. By doing this he tells them that they can go ahead and do what they are doing. That is dangerous.

For one thing I tend not to see myself in various moulds that people fit me into.