If the U.S. wants to help people in tsunami-hit countries like Sri Lanka and Indonesia - not to mention other poor countries in Africa - there's one step that would cost us nothing and would save hundreds of thousands of lives. It would be to allow DDT in malaria-ravaged countries.

The north of the Central African Republic is now a war zone, with rival armed bands burning villages, kidnapping children, robbing travelers and killing people with impunity.

So Kim Kardashian is getting a divorce, 72 days after a wedding that is variously reported to have cost $10 million or more. Just to put that in perspective, that sum could have built 200 schools in poor countries around the world for kids who desperately want an education. Then Kardashian could have helped transform the world, not just entertain it. And the schools would have lasted incomparably longer than her marriage.

There could be a powerful international women's rights movement if only philanthropists would donate as much to real women as to paintings and sculptures of women.

China was probably the worst place in the world to grow up female 100 years ago. There was foot binding, female infanticide, concubinage, and child marriage, and now it's one of the better places. So I really do feel that we're on the right side of history here.

Our nearly century-long experiment in banning marijuana has failed as abysmally as Prohibition did... In contrast, legalizing and taxing marijuana would bring in substantial sums that could be used to pay for schools, libraries or early childhood education.

American airstrikes...create risks, especially if our intelligence there is rusty. The crucial step, and the one we should apply diplomatic pressure to try to achieve, is for Maliki to step back and share power with Sunnis while accepting decentralization of government. If Maliki does all that, it may still be possible to save Iraq. Without that, airstrikes would be a further waste in a land in which we've already squandered far, far too much.