The latest al-Qaida bomb plot targeting U.S. aircraft was unraveled from inside the terrorist group.
WASHINGTON — The latest al-Qaida bomb plot targeting U.S. aircraft was unraveled from inside the terrorist group by operatives — including a double agent — working on behalf of the CIA and its counterparts in Saudi Arabia and Yemen, according to U.S. and Middle Eastern officials.
The Saudi intelligence service played a particularly important role in penetrating al-Qaida’s affiliate in Yemen and recovering the explosive device, according to officials who described an elaborate espionage operation in which the CIA tracked the bomb’s movements for weeks and then killed suspected plotters in a drone strike after the device was seized.
Senior U.S. officials continued to withhold certain details, including the location and status of the individual — described by officials as a Saudi informant — who penetrated the terrorist group posing as a willing suicide bomber and then turned over the device to authorities after leaving Yemen.
The bomb arrived at an FBI laboratory in Quantico, Va., about a week ago and is being examined by explosives technicians, law-enforcement officials said. One said the explosive was made from a chemical compound that was “built to get around U.S. security and had the potential to do that.”
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The plot shows al-Qaida’s franchise in Yemen remains committed to mounting attacks against Western targets even after its most prominent advocate of such strikes, U.S.-born Anwar al-Awlaki, was killed in a drone strike last year.
The disruption of the threat also indicates the CIA and other agencies have gained significant traction on their target two years after President Obama began deploying more spies, eavesdropping equipment and armed drones to the Arabian Peninsula.
A senior U.S. intelligence official said spy agencies were able to keep tabs on the location of the bomb, as well as those involved in plotting how it would be used, before it was intercepted in another country in the Middle East, believed to be Saudi Arabia.
The device was described as an updated version of a design that al-Qaida in the Arabian Peninsula (AQAP) has used in a series of plots, including an attempt to blow up a Detroit-bound airliner on Christmas Day 2009.
The U.S. intelligence official declined to discuss what he described as “the disposition of the individual involved” in transporting the bomb before it was seized. Other officials indicated the bomb handler was cooperating with the CIA and the Saudi spy service and is in protective custody.
A former senior U.S. intelligence official familiar with recent operations against AQAP said the Saudi spy service has furnished a steady stream of intelligence to the CIA.
“They’ve had someone on the inside of (AQAP) for some time,” the former official said. The Saudi source has provided intelligence on previous plots, including the tip that enabled authorities to disrupt al-Qaida’s attempt to mail parcels packed with explosives to addresses in Chicago in 2010.
Efforts by the CIA and the Saudi intelligence service to protect that source and enable him to remain in place make it unlikely that he was used to deliver the bomb, according to former officials who said it is more likely that a lower-ranking operative was used in that role.
As part of an expanding collaboration with the CIA, the Saudi spy service has taken advantage of long-standing informant networks and tribal relationships in Yemen, exploiting them for intelligence on an al-Qaida franchise that has many Saudis in its ranks. Among them is Ibrahim Hassan al-Asiri, the bomb maker suspected of designing the latest device.
Of dozens of AQAP fighters with Saudi backgrounds, “at least five or eight of them are under cover” working for the Saudi service at any point, a Middle Eastern official said. “The Saudis have always had a network” of sources in Yemen, the official said. “Now they are expanding its objectives.”
The deepening cooperation reflects the extent to which Saudi Arabia regards AQAP as a security threat. The country’s chief counterterrorism official, Mohammed bin Nayef, narrowly survived a 2009 attempt on his life by an AQAP operative.
The CIA established a drone base on the Arabian Peninsula last year, and the National Security Agency has deployed officers and equipment to monitor AQAP cellphone and email communications.
Both agencies work alongside the U.S. Joint Special Operations Command, an elite military force that operates a fleet of armed drones and recently resumed providing trainers to Yemen’s counterterrorism units.
The pace of U.S. airstrikes has quickened dramatically this year, according to data compiled by the Long War Journal website. Of 31 U.S. airstrikes in Yemen since 2002, 14 were in the past five months.
The most recent killed an alleged operations planner wanted in connection with the attack on the USS Cole in Yemen in 2000.
U.S. officials said that Fahd Mohammed Ahmed al-Quso probably was involved in directing the plot but that the drone strike was ordered because of his larger role in AQAP.
Washington Post staff writers Karen DeYoung and Sari Horwitz
and researcher Julie Tate
contributed to this report.