Us Shoe Bomb

The latest warning to airlines about shoe-bomb threats is a product of heightened US concern about al-Qaeda's Yemen-based affiliate, whose leaders include a technically-savvy bombmaker, US security sources said on Thursday.

US authorities issued a warning on Wednesday to airlines flying to the United States to watch out for militants who may have hidden bombs in their shoes, US government sources said.

The latest warning to airlines about shoe-bomb threats is a product of heightened US concern about al-Qaeda's Yemen-based affiliate, whose leaders include a technically-savvy bombmaker, US security sources said on Thursday.

US authorities issued a warning on Wednesday to airlines flying to the United States to watch out for militants who may have hidden bombs in their shoes, US government sources said.