In the 1950s, the Soviet spy Kim Philby was then positioned as MI-6’s man in Washington and regularly entertained some of the top figures in US intelligence at booze-sodden parties in his sprawling house, including Allen Dulles, Frank Wisner and "Jesus" Jim Angleton. This was the time of the McCarthy witch-hunts. Philby considered the Wisconsin demagogue a buffoon and realized that while his bombastic hearings were creating a climate of paranoia inside the State Department, Pentagon and CIA, they weren’t doing any real damage to the vast Soviet spy network in the US. Philby knew something most American bureaucrats and politicians didn’t: the primary source for McCarthy’s targets was none other than J. Edgar Hoover, eager to use McCarthy’s political pogrom to cripple his rivals at the CIA. One day Philby took Hoover to lunch and asked him directly what the FBI man thought of the sweaty Senator. Hoover primly wiped his mouth with a napkin and said: “Oh, I see him at the race track from time to time, but he’s yet to give me a winner.”