Question

The quote below comes from the director of the weapons testing laboratory in the Soviet Union, the USSR, describing an event in August 1949

Answer 1

When 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.
That quote? What is the question though?

Answer 2

The answer is United States.
During the period of 1947 – 1991, both united States and the soviet union were involved in a Cold war and space race and nuclear weapon race was the main competitions between us. During this time, both countries used to steal each others' scientist in order to get ahead within the competition.