Where there is a confluence of interests among nations, as, for example the swine flu or polio, you can get well functioning international institutions like the World Health Organization. And you can act. Climate change is different, because the science remains hypothetical and the potential costs staggering.

To go into Ukraine and to take over, to invade Crimea, is a huge step. And [Russian President Vladimir Putin] would only have done it with a president who has shown from the very beginning that [President Obama] is living in a fantasy world...They imagine the world as a new interconnected world where climate change is the biggest threat and they are shocked that the Russians actually are interested in territory.

Increasing public safety almost always means restricting liberties.

A drone is a high-tech version of an old army and a musket. It ought to be used in Somalia to hunt bad guys, but not in America. I don't want to see it hovering over anybody's home.

Guerrilla war is a test of wills. Obama's actual objectives - rollback in Iraq, containment in Syria - are not unreasonable. But they require commitment and determination. In other words, will. You can't just make one speech declaring war, then disappear and go fundraising.

Two decades ago, however, socialism and communism died rudely, then were buried forever by the empirical demonstration of the superiority of market capitalism everywhere from Thatcher's England to Deng's China, where just the partial abolition of socialism lifted more people out of poverty more rapidly than ever in human history.

The Democratic line is that the Republican House does nothing but block and oppose. In fact, it has passed hundreds of bills only to have them die upon reaching the desk of Senate Majority Leader Harry Reid. He has rendered the Senate inert by simply ensuring that any bill that might present a politically difficult vote for his Democratic colleagues never even comes to the floor.