A Connecticut congressman whose district includes a major submarine manufacturer, said the U.S. Navy should do more to support President George W. Bush's plan to sell eight diesel submarines to Taiwan. Newsday reported that Connecticut Republican Rob Simmons, speaking on a visit to Taipei, told an American business group the vessels, included in a $16 billion U.S. arms package, are crucial to the self-governing island's ability to defend itself against a possible attack by rival China, which is investing heavily in its own submarine fleet with a view toward using it against Taiwan, from which it split amid civil war in 1949. China has frequently threatened to use force to bring Taiwan back into its fold…