A Miami Central High math teacher was arrested after attacking the Homestead Air Reserve Base in a failed suicide bid, authorities say. Wielding two butcher knives bought at Wal-Mart and vodka bottles to use as explosives, Tahmeed Ahmad chanted ''Death to America'' and told Homestead Air Reserve Base guards he wanted to kill soldiers. But Ahmad was no terrorist, authorities believe. Rather, the Miami Central High School math teacher wanted to ''commit suicide by cop'' when he attacked military policemen stationed at the west gate just before midnight Sunday, the FBI said. Ahmad did not get his wish. One officer...