We call them by a hundred different names: boobs, knockers, jugs, hooters. We wonder if they're real or fake, too small or too big, too exposed or too covered. And every year Americans spend millions of dollars on breast enhancement, from push-up bras to surgery. Why is our culture so captivated by this particular part of the female form? "Boobs: An American Obsession" is a revealing, humorous, often poignant investigation involving everyone from anthropologists to porn stars as we explore our culture's fascination with breasts.