London Mayor Johnson says sterling would flourish if Britain leaves EU

London Mayor Boris Johnson, who opposes British membership of the European Union, said on Friday that sterling would benefit if Britain voted to leave the bloc in a June 23 referendum. Sterling fell more than five cents against the U.S. dollar in the week following Johnson's Feb. 21 announcement that he was opposing Prime Minister David Cameron and would campaign to leave the European Union. Speaking at an "Out" campaign event, Johnson said sterling would continue to fluctuate but that if Britai