Pakistanis Knew Where Osama Bin Laden Was, U.S. Sources Say

Two intelligence sources tell NBC News that the year before the U.S. raid that killed Osama bin Laden, a "walk in" asset from Pakistani intelligence told the CIA where the most wanted man in the world was hiding - and these two sources plus a third say that the Pakistani government knew where bin Laden was hiding all along.

The U.S. government has always characterized the heroic raid by Seal Team Six that killed bin Laden as a unilateral U.S. operation, and has maintained that the CIA found him by tracking couriers to his walled complex in Abbottabad, Pakistan.

The new revelations do not necessarily cast doubt on the overall narrative that the White House began circulating within hours of the May 2011 operation. The official story about how bin Laden was found was constructed in a way that protected the identity and existence of the asset, who also knew who inside the Pakistani government was aware of the Pakistani intelligence agency's operation to hide bin Laden, according to a special operations officer with prior knowledge of the bin Laden mission. The official story focused on a long hunt for bin Laden's presumed courier, Ahmed al-Kuwaiti.

While NBC News has long been pursuing leads about a "walk in" and about what Pakistani intelligence knew, both assertions were made public in a London Review of Books article by investigative reporter Seymour Hersh. Hersh's story, published over the weekend, raises numerous questions about the White House account of the SEAL operation. It has been strongly disputed both on and off the record by the Obama administration and current and former national security officials.

The Hersh story says that the "walk in," a Pakistani intelligence official, contacted U.S. authorities in 2010, that elements of ISI, the Pakistani intelligence agency, knew of bin Laden's whereabouts, and that the U.S. told the Pakistanis about the bin Laden raid before it launched. The U.S. has maintained that it did not tell the Pakistani government about the raid before it launched.

On Monday, Pentagon spokesman Col. Steve Warren called Hersh's piece "largely a fabrication" and said there were "too many inaccuracies" to detail each one. Col Warren said the raid to kill bin Laden was a "unilateral action." Both the National Security Council and the Pentagon denied that Pakistan had played any role in the raid.

AAMIR QURESHI / AFP/Getty Images

Pakistani media personnel and local residents gather outside the hideout of al Qaeda leader Osama bin Laden in Abbottabad, Pakistan after the U.S. raid that killed him.

"The notion that the operation that killed Osama Bin Laden was anything but a unilateral U.S. mission is patently false," said NSC spokesman Ned Price. "As we said at the time, knowledge of this operation was confined to a very small circle of senior U.S. officials."

The administration's responses do not address the specific allegations in the Hersh article, including the existence of the "walk in" asset.

Sen. John McCain, chairman of the Senate Armed Services Committee, dismissed Hersh's account. "I simply have never heard of anything like this and I've been briefed several times," said McCain, R.-Arizona. "This was a great success on the part of the administration and something that we all admire the president's decision to do. " 

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