As the Soviet Union Fell, Did the K.G.B. Leave Behind a Gift in Brazil?

A forensic analysis of birth certificates used by deep-cover operatives suggests a tantalizing possibility.

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Oleg Gordievsky, K.G.B. Officer Turned Double Agent, Dies at 86

While climbing the ranks of the Soviet spy agency, he spent more than a decade working for British intelligence as one of its most highly placed moles.

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