Joe Cicippio was held in chains at 20 different locations in Lebanon. Some hostages have had trouble readjusting following their release. He says he focused on the good things in his life, including music, to get him through his captivity. Greg Myre/NPR hide caption

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In October, kidnapped French intelligence agent Denis Allex appeared in a video shot by his captors. In the video, Allex pleads for French President Francois Hollande to negotiate for his release. -/AFP/Getty Images hide caption

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