Retrospective analysis is not a useful guide to current problems.

A change of strategy suggests there is a strategy. I don't see a strategy that deals with - that concerns with dealing wit with ISIL overall. There is some sort of strategy for dealing with it in Iraq. I'm not sure there is one in Syria. And Libya is another problem altogether.

Well, I think the U.S. has been careful not to go too far in attacking Iran's allies, in particular in attacking Hezbollah forces in Syria, which have been propping up the regime of Bashar al-Assad.

Global warming ... may be a plaintiff lawyer's dream. And it's interesting, in a perverse way, to imagine how a jury in 2050 might react to some of the recent industry-backed studies minimizing the dangers of global warming. I suspect future jurors will not be amused.

It's very hard to understand just what our strategy is in Syria, frankly, and on Iraq that this is Iraq's war, that the role of the United States is to help Iraq, to arm, train, support, provide air support, but this has to be Iraq's war.

If democracy succeeds in Egypt, other countries will follow. Should the democratic experiment in Egypt be hijacked by the military or anti-democratic Islamist groups, the revolution will fail elsewhere.

I think Republicans so mistrust Barack Obama, that if Barack Obama says Putin is terrible, they will be some Republicans who just take the other side.