Millions of internal records have leaked from Britain's offshore financial industry, exposing for the first time the identities of thousands of holders of anonymous wealth from around the world, from presidents to plutocrats, the daughter of a notorious dictator and a British millionaire accused of concealing assets from his ex-wife. The leak of 2m emails and other documents, mainly from the offshore haven of the British Virgin Islands (BVI), has the potential to cause a seismic shock worldwide