David Leppard is a British journalist and former editor of "The Sunday Times" investigative unit, the "Insight" team. He is the author of books on the bombing of Pan Am Flight 103, the Waco siege, and Special Branch, the British counter-terrorism and national-security police. He was responsible for a 1995 story suggesting Michael Foot, the former leader of the Labour party, had been an agent for the KGB. Wikipedia
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