Opposition supporters in Caracas, Venezuela, on April 15 protest the official results of the Venezuelan presidential election with a sign in Spanish that reads "fraudulent counting of votes." Hugo Chavez's hand-picked successor, Nicolas Maduro, won a razor-thin victory in Sunday's special presidential election but the opposition candidate Henrique Capriles refused to accept the result and demanded a full recount. (AP Photo/Fernando Llano)

Opposition supporters in Caracas, Venezuela, on April 15 protest the official results of the Venezuelan presidential election with a sign in Spanish that reads "fraudulent counting of votes." Hugo Chavez's hand-picked successor, Nicolas Maduro, won a razor-thin victory in Sunday's special presidential election but the opposition candidate Henrique Capriles refused to accept the result and demanded a full recount. (AP Photo/Fernando Llano)