On the rack: A cultural history of breasts It's hard to be boobs. Sure, breasts are cherished as givers of milk and the pinnacle of sex appeal, but the modern world hasn't been good to mammaries. As Florence Williams writes in "Breasts: A Natural and Unnatural History," they're the most tumor-prone organ in the human body. They "soak up pollution like a pair of soft sponges," and transmit environmental toxins to babies through breast ... Wed, 09 May 2012 17:02:56 -0700