U.S. Army Sgt. Bowe Bergdahl watches as one of his captors displays his identity tag in the first of several videos of the soldier, in July, 2009. Reuters/Landov hide caption

Protesters in Pakistan shout anti-U.S. slogans during a protest in July against drone strikes in Pakistan's tribal areas. Arif Ali/AFP/Getty Images hide caption

A U.S. Predator drone flies through the night sky over Kandahar Air Field in Afghanistan. Such drones have been targeting groups such as the Haqqani network that are accused of attacking U.S. and Afghan forces. Kirsty Wigglesworth/AP hide caption

Defense Secretary Leon Panetta earlier today in Kabul. Shah Marai /AFP/Getty Images hide caption

Secretary of State Hillary Clinton speaks in Islamabad Friday, as Pakistan Foreign Minister Hina Rabbani Khar looks on. Clinton urged Pakistan to act swiftly to dislodge the militant Haqqani network.

Afghan President Hamid Karzai at the funeral ceremony of slain Afghanistan High Peace Council and former president Burhanuddin Rabbani on Sept. 23, 2011.Â

In this archive photo from October 21, 2001, Jalaluddin Haqqani smiles as he leaves after a meeting with Jama"at-i-Islami leaders in Islamabad, Pakistan.

Sept. 13: Afghan Security personnel stand above the body of one attacker, on the 10th floor of the building in Kabul from which RPGs and other weapons were fired toward the U.S. embassy. David Gilkey/NPR hide caption

Afghan Security personnel stand above the body of one attacker, on the 10th floor of the building in Kabul from which RPGs and other weapons were fired. David Gilkey/NPR hide caption

Fire broke out in Kabul's Inter-Continental Hotel on Tuesday during the attack. Massoud Hossaini /AFP/Getty Images hide caption