Dr. Shakil Afridi was an important Pakistani medical official — but he also allegedly worked for the CIA, helping them to track Osama Bin Laden in the tribal areas near Pakistan's border with Afghanistan. Afridi has been held in secret detention by Pakistani intelligence since last year. He has reportedly told Pakistani intelligence agents that he was introduced to the CIA by the humanitarian organization Save The Children. Save the Children has denied this — and say that the allegation has had a negative impact on their ability to operate inside Pakistan. Marco Werman talks with New York Times reporter Declan Walsh, who has been following Afridi's story.

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