Since the Cold War Ended,U

Since the cold war ended,U.S.policy makers' chief concern with nuclear weaponry has been

A) the possibility of a computer error in the U.S.or former Soviet weapons systems that could mistakenly launch a nuclear missile.
B) the spread of nuclear technology to rogue nations or terrorist groups.
C) the use of a tactical nuclear weapon in ethnic conflicts in Eastern Europe.
D) the possibility that,in the process of dismantling the U.S.and former Soviet arsenals,a nuclear warhead could be accidentally detonated.
E) the spread of nuclear technology to NATO forces.