LONDON — Prime Minister David Cameron won the first TV encounter of a close national election in Britain, an opinion poll showed, but opposition Labour leader Ed Miliband leveraged a rare opportunity to promote himself on a national stage. With Cameron's Conservatives neck-and-neck in the opinion polls with Labour, both are trying to grab an elusive lead over the other before the May 7 ballot to avoid another possible coalition or even a minority government. Britain's future in the European Union and its territorial integrity could ride on the outcome as Cameron is pledging an EU membership referendum and Miliband may need to do a deal with Scottish nationalists intent on breaking up the UK. — Reuters
