**FILE** Dust rises over Kabul, Afghanistan, on Sept. 13, 2011, as Taliban insurgents fire rocket-propelled grenades and assault rifles at the U.S. Embassy, NATO headquarters and other buildings in the heart of the Afghan capital. (Associated Press)
Smoke and dust rises from a building, unseen in distance, which is occupied by Taliban insurgents during a coordinated assault in Kabul, Afghanistan, on Tuesday, Sept. 13, 2011. Taliban insurgents fired rocket-propelled grenades and assault rifles at the U.S. Embassy, NATO headquarters and other buildings in the heart of the Afghan capital Tuesday while suicide bombers struck police buildings. The U.S. Embassy and NATO reported no casualties. (AP Photo/Musadeq Sadeq)
Police in Kolachi, Pakistan, near Dera Ismail Khan, examine damaged vehicles on Sunday, June 26, 2011, a day after Taliban husband-and-wife suicide bombers attacked the police station. (AP Photo/Kashif Naveed)
Ghulam Farooq Wardak, Afghanistan's education minister and a member of a peace council in charge of reconciliation efforts with the Taliban, sees a post-bin Laden opportunity for accord. (Official Presidential Palace Photo)
"The minute the Taliban give up on the idea of establishing an Islamic emirate, they deny themselves the reason for their existence. This fundamental issue has to be understood while discussing the idea of reaching out to the Taliban." - Abdullah Abdullah, a former foreign minister and Afghanistan presidential candidate (Official Presidential Palace photo)
Imam Hafiz Khan, the leader of the Miami Mosque (above), also known as the Flagler Mosque, was arrested Saturday, May 14, 2011, in Miami and charged with providing about $50,000 in financial support to the Pakistani Taliban. (AP Photo/Jeffrey M. Boan)
Afghan soldiers and U.S. soldiers with the NATO-led International Security Assistance Force check inside the Traffic Department building, a Taliban stronghold, after a two-day assault in Kandahar, south of Kabul, on Monday.
Afghan and U.S. soldiers with the NATO-led International Security Assistance Force (ISAF) check inside the Traffic Department building, a Taliban stronghold, on Monday, May 9, 2011, after a two-day assault in Kandahar, Afghanistan, south of Kabul. (AP Photo/Allauddin Khan)
An Afghan policeman runs to take up a position Sunday on a rooftop against Taliban fighters hiding in a government building from which smoke is rising in Kandahar on the second day of a major assault.
An Afghan border policeman fires on Taliban fighters hidden in the Traffic Department building, where smoke rises from the rooftop, in Kandahar, Afghanistan, on Sunday, May 8, 2011. The Taliban unleashed a major assault Saturday on government buildings throughout Kandahar, Afghanistan's main southern city, an attack that cast doubt on how successful the U.S.-led coalition has been in its nearly yearlong military campaign to establish security and stability in the former Taliban stronghold. (AP Photo/Allauddin Khan)
Darul Uloom in Deoband, northern India, whose Koranic interpretations inspired the Taliban, is one of the world's most revered schools of Islamic learning and a beacon for others around the world. (Associated Press)
Afghan police and U.S. soldiers secure police headquarters in central Kandahar, Afghanistan, on Sunday, Feb. 13, 2011, after Taliban insurgents wearing explosive vests unleashed an arsenal of car bombs, automatic-rifle fire and rocket-propelled grenades on Saturday. At least 18 people where killed, most of them police officers. (AP Photo/Anja Niedringhaus)
Opium sacks, motor bikes and explosives confiscated by Afghan security forces in Kandahar are shown; allied forces are trying to make it harder for the Taliban to launch a spring offensive. (Associated Press)
Afghan police remove the body of a Taliban militant, who was killed during a clash with Afghan police in Laghman east of Kabul, Afghanistan, on Monday, Jan. 3, 2011. A group of Taliban militants attacked a police check post stationed on the Laghman to Nangarhar highway on Sunday night, and one of the militants was killed in the attack, Afghan officials said.(AP Photo/Rahmat Gul)
Spc. Wilson Christopher from Kansas City, Kan., of 2nd Platoon Bravo Company 2-327 Infantry returns fire during a sudden attack by Taliban on Badel Combat Out Post in eastern Afghanistan near Pakistani border Wednesday, Dec. 29, 2010. (AP Photo/Rafiq Maqbool)