In 2000, Sergei Tretyakov became one of the highest-ranking Russian spies ever to defect to the United States. Pete Earley, author of a new book... Book Details the Defection of 'Comrade J' Sergei ...

In her new book "The Warmth of Other Suns," Pulitzer Prize-winning journalist and professor Isabel Wilkerson digs into the "The Great Migration" that took place from 1915 to 1970, when 6 million ...

Is there a variable that could help us understand societies in a more helpful way? Let’s try defection, a concept derived from The Prisoner’s Dilemma, a game often analyzed by scholars interested in ...

Sergei Tretyakov was an operative of the KGB, the former Soviet intelligence service. When the Soviet Union dissolved, the agency changed its name, but its mission remained the same. Tretyakov was ...