Hey, let's see what a respected journalist had to say in his book the American style of (right-wing) paranoia:
Cedric Belfrage: The WW2 spy Britain was embarrassed to pursue
Britain failed to prosecute a member of the intelligence services who passed secrets to Russia in World War Two out of fear of embarrassment, files in the National Archives have revealed.
MI5 also appeared to have failed to grasp the significance of former film critic Cedric Belfrage's activities.
The Briton worked for an arm of MI6 in New York after a career in Hollywood.
But his colleagues were unaware he had become increasingly left wing, probably after a trip to the Soviet Union.
Historians say his espionage could be ranked alongside that conducted by members of the Cambridge spy ring during the Cold War.
Ooops. Warning to journalists. Archives and documents may be hazardous to your narrative.
McCarthy ordered an immigration officer to be present when an alien of long standing took the Fifth Amendment. The alien was Cedric Belfrage, an author who wrote for Hollywood fan magazines, had been Sam Goldwyn's press agent, and who had traveled to the Soviet Union in 1936. After taking the Fifth, Belfrage was arrested on a deportation warrant, held at Ellis Island, and then deported to Great Britain