| WASHINGTON (Reuters) - U.S. Senate Majority Leader Tom Daschle, the target of an anthrax-laced letter sent to Capitol Hill, said the nation must quickly mount and expand its defenses against bioterrorism. ``We can't know where the next threat will come from, or what form it will take,'' the South Dakota Democrat said. ``But we must assume there will be a next time. And we must be prepared.'' |