A Korean-American businessman accused of trying to buy deadly nerve gas for export was held on $2 million bail after a prosecutor argued the man might flee to his high-level contacts overseas.

Assistant U.S. Attorney Anne Singer said Juwhan Yun, 49, "bragged that he had close personal contacts with high-ranking civilian and military officials in many countries," including Yugoslavia, the People's Republic of China and South Korea.U.S. magistrate Ronald Hedges set the $2 million figure at a bail hearing Tuesday for Yun of Short Hills.