Western governments have generally tried to contain genocide by appeasing its architects. But the sad record of the last century shows that the walls the United States tries to build around genocidal societies almost inevitably shatter.

From 1945 to the end of the century, the United States attempted to overthrow more than 40 foreign governments, and to crush more than 30 populist-nationalist movements struggling against intolerable regimes. . . . In the process, the US caused the end of life for several million people, and condemned many millions more to a life of agony and despair.

I'm reasonably optimistic about the future, especially the future of the United States - for the century, at least.

I believe the United States is the greatest country on Earth. I really do.

We are not accepting that countries just get to sit back and let the United States meet threats that are going to roost in their worlds just as easily as they are in ours.

If your aim is to attack the United States, it is hard to imagine a more difficult way of getting here than by posing as a refugee.