Russian former oil tycoon and Kremlin critic Mikhail Khodorkovsky speaks during a press conference at the Wall Museum at Checkpoint Charlie on Sunday in Berlin. John MacDougall /AFP/Getty Images hide caption

itoggle caption John MacDougall /AFP/Getty Images

Former Yukos oil company CEO Mikhail Khodorkovsky looks through the defendant's glass cage in a Moscow courtroom on Nov. 1, 2010. Alexey Sazonov/AFP/Getty Images hide caption

itoggle caption Alexey Sazonov/AFP/Getty Images