"Racism," Charles Barkley says, "is the biggest cancer of my lifetime. And I know I can't cure the cancer, but doesn't somebody have to attack it?" Barkley's means of attack in Who's Afraid of a Large Black Man?--not surprising from one of the most outspoken athletes of our time--is to break past the taboo of race by talking about it in the open. What might be surprising is that Barkley steps aside and lets other people talk, too. While in his previous bestseller, I May Be Wrong but I Doubt It, the former NBA MVP and current TNT commentator held forth on a wide variety of subjects, for his new book he sought out a baker's dozen of leading figures in entertainment, business, and government (and yes, one athlete) and sat down with each for a frank conversation about race. Of course race is not a simple topic, and each discussion heads in its own direction. Tiger Woods speaks both of his biracial identity and of how moving it was to see the black staff at Augusta National lined up to see him put on the green jacket as Masters champion. George Lopez talks about the pressures of creating a breakthrough Latino sitcom in an almost all-white industry. Film producer Peter Guber surprises Barkley when he says that he made The Color Purple out of economic self-interest, not