Doves oppose war on the grounds that the risks exceed the gains. War with Iraq could be very costly, possibly degenerating into urban warfare.

[Barack Obama failed to sell a health care reform plan to American voters] because the utter implausibility of its central promise - expanded coverage at lower cost - led voters to conclude that it would lead ultimately to more government, more taxes and more debt.

After the Soviet collapse, Marxism is a relic, a pathetic anachronism reduced to its last redoubts: North Korea, Cuba, and the English departments of the more expensive American universities.

The Houthi have local religious grievances, being Shiites in a majority Sunni land. But they are also agents of Shiite Iran, which arms, trains, and advises them. Their slogan - 'God is great. Death to America. Death to Israel' - could have been written in Persian.

I don't think you can pump carbon dioxide into the atmosphere indefinitely and not have a reaction. But there are great scientists such as Freeman Dyson, one of the greatest physicists of the last hundred years, who has studied the question, who believes quite the opposite. The reason transnational action is so difficult is because the major problem with climate change is, A, that there is no consensus, and, B, that the economic cost is simply staggering. Reversing it completely might mean undoing the modern industrial economy.

Hawks favor war on the grounds that Saddam Hussein is reckless, tyrannical and instinctively aggressive, and that if he comes into possession of nuclear weapons in addition to the weapons of mass destruction he already has, he is likely to use them or share them with terrorists. The threat of mass death on a scale never before seen residing in the hands of an unstable madman is intolerable – and must be preempted.

Now this is a way to approach our healthcare problems: increase the number of tax collectors and decrease the number of doctors - brilliant!