While cancer victims usually blame themselves - I shouldn't have smoked, should have eaten better, should have exercised - or the cruelty of chance, they may now have a new scapegoat: Grandma. Eating poorly during pregnancy can increase your children's and your grandchildren's risk of cancer, even if they themselves eat healthily, a new study on rats suggests. The risk associated with high-fat diets, especially those high in omega-6 fatty acids, "can be passed from one generation to another without any further exposure," said lead researcher Sonia de Assis of Georgetown University. > This should not imply that fat causes...