Opposition leaders Boris Nemtsov, center, and Mikhail Kasyanov, left, take part in a protest demonstration in Moscow, Saturday, Sept. 15, 2012. Tens of thousands marched Saturday across downtown ... more 
Opposition leaders Boris Nemtsov, center, and Mikhail Kasyanov, left, take part in a protest demonstration in Moscow, Saturday, Sept. 15, 2012. Tens of thousands marched Saturday across downtown Moscow in the first major protest in three months against President Vladimir Putin, defying the Kremlin's efforts to muzzle dissent. Leftists, liberals and nationalists mixed up with students, teachers, gay activists and others on the capital's tree-lined boulevards, chanting "Russia without Putin!" and "We are the Government!" (AP Photo/Ivan Sekretarev) less 
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Associated Press | Photo By Ivan Sekretarev
Sat, Sep 15, 2012 9:44 AM EDT