In the huge cream & green arena of Milwaukee's auditorium a voice shouted: "I want to call a spade a spade and tell this convention I am a Communist." He was a delegate to the meeting of the C.I.O.'s United Electrical, Radio and Machine Workers. As photographers rushed for their cameras, press-shy President Albert Fitzgerald grabbed for his microphone: "You boys behave. These vultures are about to take pictures."
Actually, most of the 3,500 delegates sat quietly patient through the vicious wranglings of right-and left-wing leaders. Everyone knew that the C.I.O.'s biggest Communist-dominated...