Russian police officers patrol at Red Square with the Lenin Mausoleum in the background, in Moscow, Russia, Saturday, March 3, 2012. Security is tightened on the eve of Sunday's presidential election in Russia. (AP Photo/Mikhail Metzel)

Associated Press
Russian police officers patrol at Red Square with the Lenin Mausoleum in the background, in Moscow, Russia, Saturday, March 3, 2012. Security is tightened on the eve of Sunday's presidential election in Russia. (AP Photo/Mikhail Metzel)
Russian police officers patrol at Red Square with the Lenin Mausoleum in the background, in Moscow, Russia, Saturday, March 3, 2012. Security is tightened on the eve of Sunday's presidential election in Russia. (AP Photo/Mikhail Metzel)
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