Science has everything to say about what is possible. Science has nothing to say about what is permissible.

The international community lies at the center of the Obama foreign policy. Unfortunately, it is a fiction. There is no such thing. Different countries have different histories, geographies, necessities, and interests. There's no natural, inherent, or enduring international community.

The conservative idea is not that government has no role. You might have argued that in the thirties when conservatives opposed the New Deal.

This is how the great post-partisan, post-racial, New Politics presidency ends - not with a bang, not with a whimper, but with a desperate election-eve plea for ethnic retribution.

I think the first thing is to recognize a mistake that Obama made. And others have made in thinking that you can revolutionize a system that's unbelievably complex and interlinked, one-sixth of the economy. That was a mistake because whenever you change one thing, it changes 80 other things, and now if you're changing everything at once, you have no idea what the outcome is going to be and you get all of these unintended side effects.

I'm not against international institutions that would try to tackle global warming. But the way to go, at least in the short run, is to go to nuclear power. It's amazing to me that people who are so alarmed about global warming are so reluctant to adopt the obvious short-term solution - the bridge until the day when we have affordable renewable energy - of nuclear power.

Obama has committed the U.S. to war on the Islamic State. To then allow within a month an allied enclave to be overrun - and perhaps annihilated - would be a major blow.