[[Senator Joseph McCarthy]] led a prominent public campaign to investigate [[Communist Party of the United States|Communist Party]] members working in sensitive US government jobs who were in violation of the [[Hatch Act]] prohibiting federal employment of workers with membership in "any political organization which advocates the overthrow of our constitutional form of government." By 1950, it was widely known that the [[Union of Soviet Socialist Republics]] had obtained atomic weapons know-how with the assistance of American citizens, many of them government employees. The United States had spent $4 billion to develop the technology, roughly equivalent to $80 billion today. The international situation was extremely tense at the time, and public knowledge that America's [[Cold War]] enemy obtained [[nuclear weapons]] capability with the help of federal government employees, along with the perception that the [[Truman administration]] was unconcerned about it, was very worrisome to many. | [[Senator Joseph McCarthy]] led a prominent public campaign to investigate [[Communist Party of the United States|Communist Party]] members working in sensitive US government jobs who were in violation of the [[Hatch Act]] prohibiting federal employment of workers with membership in "any political organization which advocates the overthrow of our constitutional form of government." By 1950, it was widely known that the [[Union of Soviet Socialist Republics]] had obtained atomic weapons know-how with the assistance of American citizens, many of them government employees. The United States had spent $4 billion to develop the technology, roughly equivalent to $80 billion today. The international situation was extremely tense at the time, and public knowledge that America's [[Cold War]] enemy obtained [[nuclear weapons]] capability with the help of federal government employees, along with the perception that the [[Truman administration]] was unconcerned about it, was very worrisome to many. |