THE CIA have thwarted an ambitious plot by al-Qaeda's affiliate in Yemen to destroy a US-bound airliner using a bomb with a sophisticated new design around the one-year anniversary of the killing of Osama bin Laden, The Associated Press has learned.
The plot involved an upgrade of the underwear bomb that failed to detonate aboard a jetliner over Detroit on December 25, 2009.
This new bomb was also designed to be used in a passenger's underwear, but this time al-Qaeda developed a more refined detonation system, US officials said.
The FBI is examining the latest bomb to see whether it could have passed through airport security and brought down an aeroplane, officials said.
They said the device did not contain metal, meaning it probably could have passed through an airport metal detector.
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