U.S. actor Sean Penn, center, who is in Bolivia to attend the hearing of Jacob Ostreicher, participates in a vigil for Venezuela's President Hugo Chavez in La Paz, Bolivia, Monday Dec. 10, 2012. Chavez's cancer relapse and his sudden announcement that he will undergo a fourth cancer-related surgery in Cuba have thrown Venezuela's future into question. Ostreicher is being held in a Bolivian prison in the eastern provincial capital of Santa Cruz while authorities investigate him for money laundering. (AP Photo/Juan Karita)
