Mr. Williams is a student at the University of Washington and an intern at HNN. Though a definite link has yet to be established (or publicized), it becomes more apparent with each passing day that the acts of terror on September 11 were undertaken by individuals belonging to or associated with the Al-Qaida organization. While the group has ties to the Taliban, the current ruling faction in Afghanistan, neither can really be considered a government, making war with either an unconventional one. Yet the United States is hardly unused to combating unconventional foes. While the Vietnam War and the "War...