TOPSHOTS Venezuelan President in Charge Nicolas Maduro waves at the crowd as he officially registers his candidacy for the upcoming presidential election at the National Electoral Council (SNE) in Caracas, on March 11, 2013. Venezuela has entered a bitter election race to succeed Hugo Chavez, with his chosen successor branding his challenger a "fascist" after the opposition candidate accused him of exploiting the late leader's death. AFP PHOTO/Luis Acosta