[I]t is more than slightly ironic that Democrats, the fiercely pro-choice party, reserve free choice for aborting a fetus, while denying it for such matters as choosing your child's school or joining a union.

This is a formidable enemy. To dismiss it as a bunch of 'cowards' perpetuating 'senseless acts of violence' is complacent nonsense. People willing to kill thousands of innocents while they kill themselves are not cowards. They are deadly vicious warriors and need to be treated as such.

I don't know about you, but I lie awake nights worrying about Canadian uranium. I know these people. I grew up there. You have no idea what they're capable of doing. If Sidney Crosby hadn't scored that goal to win the Olympic gold medal, there's no telling what might have ensued.

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.

There's no free lunch. If you want an industrial economy, you need energy. If you want energy, it will produce pollution. You can have it in two forms. You can have it dissipated in the atmosphere - like carbon dioxide - which then you cannot recover, or you can have the waste concentrated in one small space like nuclear. That is far easier to deal with. The idea that you can be able to create renewable energy at a price anywhere near the current price for oil or gas or coal is a fantasy.

I think if you're going to master policy, especially world affairs, you've got to know history.

Increasing public safety almost always means restricting liberties.