women s week officially kicks off today. there is a any twist to those efforts, using social media. facebook s new game was called half the sky. turning oppression into opportunities for women worldwide. joining me, pulitzer prize winning columnist nick kristoff. coauthor of the book. let me start by setting the stage for people who don t know what this is. what is half the sky. ? the argument is written by my wife and i. and our argument is that the central moral charlg for this century is empowering women around the world, educating girls and getting them into the labor force .out of the margins. that is where you get leverage. and, you know, we were excited about the book.