Investigative journalist and BAFTA-winning filmmaker Richard Kerbaj discusses The Defector, his book on Oleg Lyalin — the KGB officer who walked into a North London police station in 1971 and exposed over 200 Soviet spies in Britain, partly to escape his marriage. He and the hosts trace how MI5's decision to withhold him from the CIA broke James Angleton's decade of paranoia, then take apart the Five Eyes: its origins, its budget imbalance, and whether it survives the current moment.
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