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.

America's education system has become less a ladder of opportunity than a structure to transmit inequity from one generation to the next.

I think it's dangerous to be optimistic.

Look, we'll have to confront the pathologies of poverty at some point. We can deal with them cheaply at the front end, in infancy. Or we can wait and jail a troubled adolescent at the tail end. To some extent, we face a choice between investing in preschools or in prisons.

We all might ask ourselves why we tune in to these more trivial matters and tune out when it comes to Darfur

Half a million women die each year around the world in pregnancy. It's not biology that kills them so much as neglect.

It really is quite remarkable that Darfur has become a household name. I am gratified that's the case.