Hundreds of U.S.-led troops have launched an offensive against Al Qaeda and Taliban militants in an area of eastern Afghanistan where Usama bin Laden once hid, officials said Wednesday. Ground troops and airstrikes are targeting "hundreds of foreign fighters" dug into positions in the Tora Bora region of eastern Nangarhar province, coalition spokeswoman Capt. Vanessa Bowman. She did not say when the operation began or how long it was expected to last. Source.