Biography of the American physicist who led the U.S. effort to develop the atomic bomb during World War II, only to find himself suspected as a security risk in the 1950s.

Biography of the American physicist who led the U.S. effort to develop the atomic bomb during World War II, only to find himself suspected as a security risk in the 1950s because of his increasing ambivalence about the effect of his life's work.—scgary66