U.S. Secretary of State Hillary Rodham Clinton addresses a news conference with Adm. Mike Mullen, the chairman of the U.S. Joint Chiefs of Staff, at the U.S. Embassy in Islamabad, Pakistan, on May 27, 2011. (Associated Press)
Hafiz Saeed (center), the leader of banned Islamic group Jamaat-ud-Dawa, sits among religious leaders during a rally against India and the United States in Lahore, Pakistan. Accounts gathered by the Associated Press add to suspicion that Pakistan is accepting U.S. aid to fight militants while tolerating and in some cases encouraging extremism.
Pakistan soldiers surround the area near a suicide bombing in Peshawar, Pakistan, on Wednesday, May 25, 2011. A suicide bomber in an explosives-laden pickup truck leveled a police building in northwest Pakistan Wednesday, killing five officers and wounding 30 other people in the latest attack to rattle the country since the U.S. raid that killed Osama bin Laden. (AP Photo/Mohammad Sajjad)
A view of destruction caused by a suicide bombing on May 25, 2011, in Peshawar, Pakistan. A suicide bomber in an explosives-laden pickup truck leveled a police building in northwest Pakistan, killing five officers and wounding 30 other people. (Associated Press)
** FILE ** Local residents stand outside a shop with graffiti reading "leader of Muslims Mullah Mohammad Omar," on Sunday, May 8, 2011, in Pashin, 100 kilometers south of Quetta, Pakistan. (AP Photo/Arshad Butt)
Pakistani tribesmen carry a casket of a victim of NATO oil tanker explosion for a funeral prayer in Landi Kotal near Afghan border in Pakistan on Saturday, May 21, 2011. A tanker carrying oil for NATO forces in Afghanistan exploded Saturday in northwestern Pakistan as people tried to siphon off some of its fuel, an official said. (AP Photo/Qazi Rauf)
Pakistani students chant anti-U.S. slogans during a rally on Wednesday, May 18, 2011, in Abbottabad, Pakistan, to condemn the killing of al Qaeda leader Osama bin Laden and American's drone attacks on Pakistani tribal areas where militants are hiding. (AP Photo/Aqeel Ahmed)
Supporters of Pakistani religious group Jamaat-ud-Dawa, listen to their leaders during a rally Sunday to condemn the United States for the killing of al Qaeda leader Osama bin Laden in Lahore, Pakistan. (Associated Press)
Pakistani Prime Minister Yusuf Raza Gilani (right) greets U.S. Sen. John Kerry before their official talks at the prime minister's residence in Islamabad, Pakistan, on Monday, May 16, 2011. Mr. Kerry says the U.S. relationship with Pakistan is at a "critical moment" because of the killing of Osama bin Laden in the Pakistani town of Abbottabad on May 2. (AP Photo/B.K. Bangash)
A Pakistani police officer examines a bullet hole on the car of a Saudi consulate employee who was shot dead in Karachi, Pakistan, on Monday. Gunmen on a motorbike shot and killed the Saudi diplomat as he was driving in Pakistan's largest city on Monday, police in Karachi said. (Associated Press)
Pakistan army soldiers are on alert at the site of a bombing Friday in Shabqadar near Peshawar, Pakistan. A pair of suicide bombers attacked recruits leaving a paramilitary training center in Pakistan on Friday, killing 80 people in the first retaliation for the killing of Osama bin Laden by American commandos. (Associated Press)
Soldiers of the Pakistan army stand guard after a bombing in Shabqadar near Peshawar, Pakistan, on Friday, May 13, 2011. A police officer says the death toll in a pair of explosions outside a security force training center in northwest Pakistan has risen to 80. (AP Photo/Mohammad Sajjad)
**FILE** Supporters of the Pakistani religious party Jamaat-e-Islami rally in Rawalpindi, Pakistan, on May 6 to condemn the killing of al Qaeda leader Osama bin Laden and U.S. drone attacks on Pakistani tribal areas. The banner reads, "We condemn U.S. interference and drone attacks." (Associated Press)
** FILE ** This May 3, 2011 file photo shows a view of Osama bin Laden's compound in Abbottabad, Pakistan, the day after a U.S. military raid that ended with the death of the al-Qaida leader. (AP Photo/Aqeel Ahmed, File)
Pakistani Prime Minister Yousuf Raza Gilani told his nation's parliament the country "reserves the right to retaliate" if the U.S. tries another raid like last week's attack on Osama bin Laden's compound. "No one should underestimate the resolve and capability of our nation," he said.
Supporters of Pakistan's Muslim League burn a representation of the U.S. flag during an anti-American demonstration Monday in Multan, Pakistan. Pakistan's prime minister is rejecting allegations that national authorities were either complicit in hiding al-Qaida chief Osama bin Laden or incompetent in tracking him down. (Associated Press)