If you believe that health care is a public good to be guaranteed by the state, then a single-payer system is the next best alternative. Unfortunately, it is fiscally unsustainable without rationing.

If fences don't work, why is there one around the White House.

Consider the oddity of those drug commercials on television. Fifteen seconds of the purported therapeutic effort, followed by about 45 seconds of a rapidly muttered list of horrific possible side effects. When the ad is over, I can't remember a thing about what the pill is supposed to do, except perhaps cause nausea, liver damage, projectile vomiting, a nasty rash, a four-hour erection, and sudden death. Sudden death is my favorite because there is something comical about it being a side effect. What exactly is the main effect in that case? Relief from abdominal bloating?

The medical malpractice system is totally out of control. Everybody in the system knows it. And it's not just of the outrageous judgments, it's not just the fact that some people get millions of dollars, others get nothing, and the one people who get rich are lawyered, it's just that it causes doctors to practice defensive medicine.

The Obama foreign policy, in broad strokes, has been a disaster.

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.

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.