'Brits don't quit', Cameron declares as EU referendum in balance

By Michael Holden LONDON (Reuters) - British Prime Minister David Cameron made a dramatic last-minute appeal to voters on Tuesday to back staying in the European Union two days before a referendum that will shape the future of West, as polls indicated the outcome was too close to call. In a rare televised address outside his Downing Street office, Cameron repeated his message that leaving the EU would jeopardise Britain's economy and its national security, with fewer jobs and higher prices. Just