A Spy Among Friends: Kim Philby and the Great Betrayal
by Ben Macintyre
Crown, 384 pages, $27

The annals of the Twentieth Century will never forget the name Kim Philby. To the British intelligence community, Philby was a traitor, whose illicit devotion to Communism was concealed by his pedigree and charisma. To the KGB, Philby was a hero who infiltrated the highest ranks of British intelligence and successfully divulged countless MI6 secrets over the course of 30 years. He thwarted major British intelligence operations, such as the attempted coup of Albania; he was directly responsible for the deaths of hundreds of German Catholics and Western allies; and as Ben Macintyre’s latest addition to the Philby canon illustrates, he betrayed all of his lifelong friends.