I was watching a TV show last night (OK, it was Desperate Housewives, leave me alone) when one of the characters, as part of a prenatal medical survey, was asked if there was any cancer in his family. He said, "No." Just no. At first I thought that was ridiculous; every family has cancer in it somewhere. But is that true? Is there anyone out there that has no relative, even going back only two or three generations, that has gotten cancer? Is that possible? Maybe if they all die of heart disease at a young age before they can develop cancer?