Sterling tumbles after dovish comments from BoE's Carney

By Sam Forgione NEW YORK (Reuters) - The U.S. dollar gained against the sterling and the euro on Thursday, snapping two straight days of losses, after Bank of England Governor Mark Carney said he saw the need for more stimulus and a Bloomberg report hinted at more European Central Bank easing. Carney said that the BoE would probably need to pump more stimulus into Britain's economy over the summer after the shock of last week's decision by voters to leave the European Union. Investors were alrea