Documents seized by U.S. forces in Afghanistan in 2001 included letters from a Pakistani scientist to al-Qaeda's No. 2 commander, Ayman al-Zawahiri. The scientist, identified by U.S. and Pakistani officials as Abdur Rauf, traveled through Europe in search of anthrax spores and bioweapons equipment. The result of his work for al-Qaeda remains unclear.
SOURCE: Department of Defense | The Washington Post - October 31, 2006
