Saudi suspect in underwear bomb plots trained others, U.S. says

ASPEN, Colo. (Reuters) - The United States believes the Saudi man suspected of designing underwear bombs for al Qaeda's Yemeni affiliate has trained a small number of people on his advanced bomb-making techniques, a senior U.S. official said on Friday.

The remarks by John Pistole, who heads the U.S. Transportation Security Administration, were some of the most detailed public comments to date about Ibrahim Hassan al-Asiri and the thwarted May 2012 plot by al Qaeda in the Arabian Peninsula, or AQAP, to blow up a plane with an underwear bomb.