There are ten times as many sex slaves transported around the globe today as agrarian slaves were transported in the 1790s.

In the nineteenth century, the central moral challenge was slavery. In the twentieth century, it was the battle against totalitarianism. We believe that in this century the paramount moral challenge will be the struggle for gender equality around the world.

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.

So let us be clear about this up front: We hope to recruit you to join an incipient movement to emancipate women and fight global poverty by unlocking women's power as economic catalysts. That is the process under way - not a drama of victimization but of empowerment, the kind that transforms bubbly teenage girls from brothel slaves into successful businesswomen. This is a story of transformation. It is change that is already taking place, and change that can accelerate if you'll just open your heart and join in.

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.

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.

Rising seas create a higher baseline for future storm surges. The New York City Panel on Climate Change has projected that coastal waters may rise by two feet by 2050 and four feet by the end of the century.