The quote below comes from the director of the weapons testing laboratory in the Soviet Union, the USSR, describing an event in August 1949: "[W]hen we succeeded in solving this problem, we felt relief, even happiness-for in possessing such a weapon we had removed the possibility of its being used against the USSR with impunity." Source: http://www.pbs.org/wgbh/amex/bomb/peopleevents/pandeAMEX53.html Which nation did the director fear might use the weapon they had developed against the Soviet Union?

Question