Acting Venezuelan President Nicolas Maduro gestures before casting his ballot for the successor to the late President Hugo Chavez, in Caracas April 14, 2013. Venezuelans went to the polls to decide whether to honor Chavez's dying wish for a longtime loyalist to continue his hardline socialism or hand power to a young challenger vowing business-friendly changes. REUTERS/Carlos Garcia Rawlins (VENEZUELA - Tags: ELECTIONS POLITICS) 

Venezuela's opposition leader Henrique Capriles gestures during a news conference in Caracas April 15, 2013. Capriles refused on Monday to accept ruling party candidate Nicolas Maduro's narrow election victory and demanded a recount. REUTERS/Marco Bello (VENEZUELA - Tags: POLITICS ELECTIONS TPX IMAGES OF THE DAY) 

Supporters of Venezuela's acting President Nicolas Maduro attend a rally outside the national election board, as Maduro registered as a candidate for president in the April 14 election, in Caracas March 11, 2013. Presidential candidates Maduro and Henrique Capriles have begun Venezuela's election race with scathing personal attacks even as mourners still file past the late Hugo Chavez's corpse. Poster reads, "Maduro in my heart". REUTERS/Tomas Bravo (VENEZUELA - Tags: POLITICS ELECTIONS) 

Supporters of Venezuela's opposition leader and presidential candidate Henrique Capriles attend a campaign rally in the state of Merida April 10, 2013. Venezuelans will hold presidential elections on April 14. REUTERS/Carlos Garcia Rawlins (VENEZUELA - Tags: POLITICS ELECTIONS TPX IMAGES OF THE DAY) 

Venezuela's opposition leader and presidential candidate Henrique Capriles throws his cap to supporters during a campaign rally in the state of Lara April 11, 2013. Venezuela will hold its presidential elections on April 14. REUTERS/Carlos Garcia Rawlins (VENEZUELA - Tags: POLITICS ELECTIONS) 

Supporters of Venezuela's acting President and presidential candidate Nicolas Maduro watch motorcyclists do wheelies before Maduro's arrival at his closing campaign rally in Caracas April 11, 2013. Venezuela will hold its presidential elections on April 14. REUTERS/Edwin Montilva (VENEZUELA - Tags: POLITICS ELECTIONS TRANSPORT SOCIETY) 

Venezuela's acting President and presidential candidate Nicolas Maduro talks with his granddaughter Paola during a campaign rally in Caracas April 5, 2013. Maduro said on Friday that Venezuelan authorities have arrested several people suspected of plotting to sabotage one of his campaign rallies before an April 14 election by cutting the power. REUTERS/Carlos Garcia Rawlins (VENEZUELA - Tags: POLITICS ELECTIONS) 

Venezuelans pose with their ink-stained fingers after voting for the successor of late President Hugo Chavez, in Caracas April 14, 2013. Venezuelans went to the polls to decide whether to honor Chavez's dying wish for a longtime loyalist to continue his hardline socialism or hand power to a young challenger vowing business-friendly changes. REUTERS/Tomas Bravo (VENEZUELA - Tags: ELECTIONS POLITICS) 

Supporters of Venezuela's opposition presidential candidate Henrique Capriles react after the official results gave a victory to Nicolas Maduro, in Caracas April 14, 2013. Maduro, a former bus driver who became Hugo Chavez's protege, narrowly won Venezuela's presidential election on Sunday, the electoral authority said, allowing him to continue the socialist policies of his late predecessor. REUTERS/Carlos Garcia Rawlins (VENEZUELA - Tags: ELECTIONS POLITICS) 

Venezuelan presidential candidate Nicolas Maduro and his wife Cilia Flores celebrate after the official results gave him a victory in the balloting, in Caracas April 14, 2013. Maduro won Venezuela's presidential election on Sunday with 51 percent of votes, the electoral authority said, allowing him to carry forward the socialist policies of the late Hugo Chavez. REUTERS/Tomas Bravo (VENEZUELA - Tags: ELECTIONS POLITICS)