According to Steven Pinker, in spite of headline news like the war in Iraq and the crisis in Darfur, the world is a kinder, gentler place today than it's ever been. A provocative statement, no? In the latest issue of The New Republic, Pinker posits that in spite of these and other global conflicts, we're getting nicer and more intolerant of things like "cruelty as entertainment, human sacrifice to indulge superstition, ... rape as the spoils of war, pogroms as outlests for frustration, [and] homicide as the major form of conflict resolution." He joins us to elaborate on his position, and take your questions.

1:27 - March 21, 2007