Clay Risen

In his latest book, journalist and historian Clay Risen explores how the House Un-American Activities Committee and Senator Joseph McCarthy upended the nation.

The U.S. government repeatedly tried to deport the midcentury labor leader over his alleged ties to the Communist Party.

Dean Acheson, President Truman’s prim, patrician undersecretary of state, was sitting in his office on February 21, 1947, when he received a visitor.

The impact can linger not just for years but decades.