More details emerge from the alleged perps in an online religious magazine called 'Inspire' (motto on the cover: "...And Inspire The Believers"):
November 20, 2010
Qaeda Branch Aimed for Broad Damage at Low Cost
By SCOTT SHANE
In a detailed account of its failed parcel bomb plot last month, Al Qaeda’s branch in Yemen said late Saturday that the operation cost only $4,200 to mount, was intended to disrupt global air cargo systems and reflected a new strategy of low-cost attacks designed to inflict broad economic damage.
The group, Al Qaeda in the Arabian Peninsula, released to militant Web sites a new edition of its English-language magazine, called Inspire, devoted entirely to explaining the technology and tactics in the attack, in which toner cartridges packed with explosives were intercepted in Dubai and Britain.
...“Two Nokia mobiles, $150 each, two HP printers, $300 each, plus shipping, transportation and other miscellaneous expenses add up to a total bill of $4,200. That is all what Operation Hemorrhage cost us,” the magazine said.
It mocked the notion that the plot was a failure, saying it was the work of “less than six brothers” over three months. “This supposedly ‘foiled plot,’ ” the group wrote, “will without a doubt cost America and other Western countries billions of dollars in new security measures. That is what we call leverage.”...
http://www.nytimes.com/2010/11/21/wo.../21parcel.html