Alger Hiss was an American government official who became embroiled in a high-profile espionage case during the early years of the Cold War. His conviction for perjury in 1950, after being accused of being a communist spy for the Soviet Union, epitomized the fears of subversion and espionage that characterized the era known as the Red Scare. The Hiss case fueled anti-communist sentiments and sparked a national debate over loyalty, truth, and the integrity of American institutions.