Tight win for Chavez's heir spells uncertainty for

By Andrew Cawthorne and Brian Ellsworth CARACAS (Reuters) - Late socialist leader Hugo Chavez's chosen successor Nicolas Maduro won Venezuela's presidential election by a whisker but now faces opposition protests plus a host of economic and political challenges in the OPEC nation. The 50-year-old former bus driver, whom Chavez named as his preferred heir before dying from cancer, edged out opposition challenger Henrique Capriles by winning 50.7 percent of the votes in the election on Sunday. Capriles won 49.1 percent support, a difference of just 235,000 ballots. ...