NEW YORK (Feb. 23) - A dance troupe leader who makes drums with animal hides was in a Pennsylvania hospital after apparently being exposed to anthrax spores, prompting officials in both states to reassure residents that it was a rare accident unrelated to terrorism. "We have every reason to believe that this infection is an isolated, accidentally and naturally transmitted case," Mayor Michael Bloomberg said Wednesday during a news conference from City Hall. The drum maker, Vado Diomande, traveled in December to Ivory Coast in West Africa and became ill shortly after he returned, officials said. Teams of federal and...