Terror's Technician: al Qaeda bomb-maker is US' worst nightmare
Ibrahim Hassan al Asiri, also known as 'Evil Genius' by US intelligence agencies, has emerged as CIA's worst nightmare since the slaying of terror chief Osama bin Laden and is now a major focus of America's anti-terrorism efforts.
As the flight approached Detroit, Abdulmutallab plunged the syringe, mixing the two chemicals and setting them afire. This flame set off the detonator, according to the prosecution. The PETN device, however, failed to detonate. Instead, some of it started burning.
While those on board the Northwest Airlines Flight 253 were lucky, Asiri was undettered. Within months he designed a device that could be integrated into a printer.
Asiri was linked to the discovery of printer cartridges packed with 400 grams of PETN and sent by international courier with Chicago-area synagogues listed as the destination. Click here for details.
Specially trained dogs and even X-ray scanners could not detect the explosive-rigged packages - believed powerful enough to bring down a plane.
"The toner cartridge contains the toner which is carbon-based and that is an organic material. The carbon's molecular structure is close to that of PETN," al Qaeda in the Arabian Peninsula boasted later, reports CNN.
Asiri, a major threat?
Al-Asiri became a major focus of America's anti-terrorism efforts. In March 2011, Washington officially designed al-Asiri as a wanted terrorist, calling him the primary bombmaker for AQAP. It also presumably puts al-Asiri among the chief targets on the US hit list.
Last month, US officials expressed concern that al Qaeda "intends to advance plots along multiple fronts, including renewed efforts to target Western aviation," according to a joint intelligence bulletin circulated from the US Northern Command, the FBI and Homeland Security Department.
While al-Asiri has been dubbed the master bomb-maker of al Qaeda's Yemen franchise, it may be wrong to label him the linchpin of the group's ability to strike with explosives, said Gregory Johnsen, a Yemen expert at Princeton University.
Although US officials touted the disrupted plot as a success, they acknowledged AQAP remained determined to strike and its master bombmaker, al-Asiri, was apparently hard at work seeking to circumvent airport security.
It is al Qaeda’s affiliate in Yemen that "we're most worried about, the affiliate we spend the most time on. They're operating in the midst of essentially an insurgency, a multi-polar struggle for the control of Yemen. And that allows them the opportunity to recruit, to fundraise, to plot," say US counterterrorism officials.
"I think it is safe to assume that in the nearly six years that he has been in Yemen, he has trained other individuals to replace him if he were to be killed," Johnsen wrote on his blog on Tuesday. "It is unlikely that Asiri is the only bombmaker AQAP has within its ranks - he is just the only name we know."
Five al Qaeda leaders most wanted by US:
Ayman al-Zawahri - Egyptian cleric Ayman al-Zawahri took over the organisation, after Osama bin Laden's killing last year by Navy SEALs. Presumed hiding in Pakistan, Zawahri has released a near-record number of propaganda videos since the bin Laden raid, exhorting followers to violence.
Abu Yahia al-Libi - The Libyan militant, as his name implies, is now the group's de facto No. 2 moving up a notch in al Qaeda's hierarchy after the bin Laden raid. A key al Qaeda propagandist whose video appearances outnumber those by leader Zawahri, he escaped a high-security US prison in Bagram, Afghanistan, in 2005.
Mullah Mohammed Omar - Leader of the Taliban, Afghan Mullah Omar has sheltered al Qaeda during the Taliban rule and since. Thought to be hiding in Quetta, Pakistan, Omar continues to command the militant forces who work together with al Qaeda, responsible for killing some 1,500 US troops in Afghanistan since 2001.
Nasser al-Wahishi - Once Osama bin Laden's aide-de-camp, Wahishi commands Yemeni affiliate al Qaeda in the Arabian Peninsula, or AQAP, the group US counterterrorist officials warn is most capable of launching an attack on US soil. AQAP has established a de facto safe haven in southern Yemen, beating back Yemeni forces that have been consumed with fighting a tribal and political revolt in the wake of the Arab Spring.
Ibrahim Hassan al-Asiri - Chief bombmaker for al Qaeda in the Arabian Peninsula, responsible for building the underwear bomb used to try to bring down a Detroit-bound jetliner on Christmas 2009 and the printer-cartridge bombs intercepted in US-bound cargo planes a year later. US intelligence officials say he has resurfaced recently in Yemen, after months in hiding following the death by drone strike of American-born firebrand AQAP cleric Anwar al-Awlaki last fall.
(With various agency inputs)

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