it was the 1954 army mccarthy hearings and the exchange between joseph welch and joseph mccarthy that changed this city and the world. six decades ago, america's national mood was marked by anxiety over the looming threat of communism. the victory of world war ii had given way to the gripping tension of the cold war. communist power was on the rise in eastern europe and in china. american forces were at war in korea. here in congress, the house committee on un-american activities worked to sniff out communist subversion within our borders, including the infamous hollywood blacklist. one man in the senate sat out to exploit the fears of that time, and he came to symbolize the fearmongering of that fretful era. joseph mccarthy was a relatively unknown junior senator from wisconsin when in february of 1950 he delivered a speech accusing secretary of state dean atchison of harboring 205 known members of the american communist party within the state department. the charge was questionable and ill supported, but the brazen accusation struck a nerve with an anxious american public, and senat