War Crimes: Ghosts from the Past

Arthur Rudolph was one of 118 top German scientists, including his longtime friend Wernher von Braun, who were secretly brought to the U.S. at the end of World War II. Later made manager of the Saturn V project in Huntsville, Ala., he led the development of the rocket that first took men to the moon. An American citizen since 1954, Rudolph was honored by NASA in 1969 with its most prestigious award, the Distinguished Service Medal.

Last week the Justice Department disclosed that Rudolph, 77, had voluntarily left for West Germany last March and renounced his U.S. citizenship in May....