A demonstrator confronts riot policemen during an anti-government protest in Caracas, Venezuela's capital, on Feb. 22. Raul Arboleda/AFP/Getty Images hide caption

itoggle caption Raul Arboleda/AFP/Getty Images

Leopoldo López, an ardent opponent of Venezuela's socialist government facing an arrest warrant after President Nicolas Maduro ordered his arrest on charges of homicide and inciting violence, kisses his wife Lilian Tintori, before turning himself in to authorities on Tuesday. Leo Ramirez/AFP/Getty Images hide caption

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This photo, which witnesses say shows Venezuelan beauty queen Genesis Carmona being evacuated from the scene of a protest on Tuesday, is ricocheting around the Web. She died after being shot. /Reuters/Landov hide caption

itoggle caption /Reuters/Landov

Venezuelan opposition leader Leopoldo Lopez (in white shirt) as he turned himself over to police on Tuesday in Caracas. Cristian Hernandez /Xinhua/Landov hide caption

itoggle caption Cristian Hernandez /Xinhua/Landov

A woman who just bought toilet paper at a grocery store reads her receipt as she leaves the store in Caracas, Venezuela, on Wednesday. The government says it will import 50 million rolls of toilet paper amid a shortage. Fernando Llano/AP hide caption

itoggle caption Fernando Llano/AP

This undated family photo released Thursday shows Timothy Tracy inside of a vehicle in Venezuela. The 35-year-old filmmaker from California was arrested Wednesday by Venezuelan authorities. AP hide caption

itoggle caption AP

Supporters of acting President Nicolas Maduro celebrated Sunday night in Caracas, Venezuela, after the initial vote count showed him enjoying a narrow victory. Luis Acosta /AFP/Getty Images hide caption

itoggle caption Luis Acosta /AFP/Getty Images

March 6: In Caracas, many Venezuelans crowded the streets to see the coffin of President Hugo Chavez. Xinhua /Landov hide caption

itoggle caption Xinhua /Landov