But U.S. officials now believe that even as Pakistan's security forces worked with their American counterparts to detain Mullah Abdul Ghani Baradar and other insurgents, the country's Inter-Services Intelligence directorate, or ISI, quietly freed at least two senior Afghan Taliban figures it had captured on its own.
U.S. military and intelligence officials said the releases, detected by American spy agencies but not publicly disclosed, are evidence that parts of Pakistan's security establishment continue to support the Afghan Taliban. This assistance underscores how complicated the CIA-ISI relationship remains at a time when the United States and Pakistan are battling insurgencies that straddle the
Afghanistan border and are increasingly anxious about how the war in that country will end.
The officials spoke on the condition of anonymity and declined to identify the Taliban figures who were released, citing the secrecy surrounding U.S. monitoring of the ISI. But officials said the freed captives were high-ranking Taliban members and would have been recognizable as insurgents the United States would want in custody.