Russian opposition leader Sergei Udaltsov speaks with his lawyer Violetta Volkova, left, in a courtroom in Moscow, Russia, Saturday, Feb. 9, 2013. Udaltsov, a top Russian opposition figure, has been placed under house arrest for two months, a move that also bans him from using most forms of communication, including the Internet, telephone and mail. A Moscow court imposed the restrictions Saturday on Sergei Udaltsov after prosecutors complained he had violated a previous agreement not to leave Moscow. (AP Photo/Mikhail Metzel)

Associated Press
Russian opposition leader Sergei Udaltsov speaks with his lawyer Violetta Volkova, left, in a courtroom  in Moscow, Russia, Saturday, Feb. 9, 2013. Udaltsov, a top Russian opposition figure, has been placed under house arrest for two months, a move that also bans him from using most forms of communication, including the Internet, telephone and mail. A Moscow court imposed the restrictions Saturday on Sergei Udaltsov after prosecutors complained he had violated a previous agreement not to leave Moscow.  (AP Photo/Mikhail Metzel)
Russian opposition leader Sergei Udaltsov speaks with his lawyer Violetta Volkova, left, in a courtroom in Moscow, Russia, Saturday, Feb. 9, 2013. Udaltsov, a top Russian opposition figure, has been placed under house arrest for two months, a move that also bans him from using most forms of communication, including the Internet, telephone and mail. A Moscow court imposed the restrictions Saturday on Sergei Udaltsov after prosecutors complained he had violated a previous agreement not to leave Moscow. (AP Photo/Mikhail Metzel)