Al Qaeda altered underwear bomb formula: US

The newly designed explosive device intercepted in Yemen was an upgrade from the underwear bomb carried by Nigerian Umar Farouk Abdulmutallab.

Last Updated: Jul 28, 2012, 09:53 AM IST

Aspen: The head of the Transportation Security Administration says the al Qaeda explosive device recently intercepted by a US intelligence operation in Yemen was a different formula than the one used to try to bring down a Detroit-bound airliner in late 2009.
John Pistole told an audience at the Aspen Security Forum that the TSA has recalibrated its explosive detection devices accordingly, and that bomb-sniffing dogs have been trained to detect it.

The newly designed explosive device intercepted by a double agent in Yemen was an upgrade from the underwear bomb carried by Nigerian Umar Farouk Abdulmutallab.

The new model also had a more sophisticated trigger mechanism, an apparent attempt to fix the defective trigger that burned the bomber but failed to ignite the bomb in the 2009 attack.

PTI