Venezuela takes two top opposition leaders back to jail

Venezuela's intelligence service took two prominent opposition leaders back to prison early Tuesday, authorities said, as embattled President Nicolas Maduro moved to shore up his power after an election widely denounced as a sham.In a statement, the Supreme Court said Leopoldo Lopez and Caracas mayor Antonio Ledezma were sent back to prison because they had violated the terms of their house arrest by making political statements.Lawyers for the two men vehemently denied the existence of any escap