Canadian Prime Minister Justin Trudeau (left) and China's Premier Li Keqiang wrap up a joint press conference in Beijing on Aug. 31. Canada and China have agreed to discuss the possibility of an extradition treaty. Mark Schiefelbein/AP hide caption

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Mark Schiefelbein/AP

Joaquin "El Chapo" Guzmán was captured by Mexican marines on Friday. He now faces extradition to the U.S., though it will likely be a lengthy process. Rebecca Blackwell/AP hide caption

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Rebecca Blackwell/AP

Top Official Says Inside Help Was Likely In 'El Chapo' Escape

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Russian supporters of NSA leaker Edward Snowden rally in central Moscow on July 12. Russia says it won't extradite Snowden to the United States, but it has cooperated with other countries in the past. Evgeny Feldman/AFP/Getty Images hide caption

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Evgeny Feldman/AFP/Getty Images