In relation to its activities, a senator asked "Haven't you gone far enough?" of Joseph McCarthy.
This organization had a run-in with the founder of the National Negro Labor Council, which resulted in Coleman Young disbanding the organization. Its first chairman was Martin Dies, a Congressman from Texas, and Margaret Chase Smith gave a "Declaration of Conscience" in which she condemned this organization. Other notable targets included a spy, Alger Hiss, and a group of producers and directors who refused to name names, which later became known as the Hollywood Ten. In relation to its activities, a senator asked "Haven't you gone far enough?" of Joseph McCarthy. For ten points, identify this committee, which was notable for blacklisting a bunch of people and whose main purpose was to root out Communism.
This organization had a run-in with the founder of the National Negro Labor Council, which resulted in Coleman Young disbanding the organization.
{House Un-american Activities Committee} (also accept “H-U-A-C”, “Hyew-ack”, “House Committee on Un-American Activities”, or “HCUA”)