Stewart Udall served three terms in Congress, and as Secretary of the Interior under Presidents Kennedy and Johnson. He is the author of a new book, "The Myths of August", (Pantheon) which chronicles his struggle as one of the first lawyers to represent thousands of Americans who were injured or killed by the testing of atomic weapons. Udall spent years investigating and litigating cases filed by Southwestern families who had been harmed by atmospheric testing of atomic bombs, and by families of Navajo men who developed lung cancer after mining Uranium for the Government.