A participant wears a sticker with the word "Obey!" during an opposition protest on Revolution square in central Moscow February 26, 2012. Thousands of Russians joined hands to form a ring around Moscow city centre on Sunday in protest against Vladimir Putin's likely return as president in an election next week. REUTERS/Denis Sinyakov (RUSSIA - Tags: CIVIL UNREST ELECTIONS POLITICS)
Motorists wave white ribbons during an anti-Putin protest in Moscow Sunday. Tens of thousands of Vladimir Putin supporters were to mass in Moscow on Thursday, seeking to prove his bid for the Russian presidency enjoys popular support despite an outburst of opposition protests. (AFP Photo/Natalia Kolesnikova)
Opposition figures Ilya Yashin (R) and Alexei Navalny (C), wearing white ribbons and carrying balloons and other white objects, take part in a protest rally called The White Ring, while they build a human chain along the Garden Ring road in Moscow, February 26, 2012. REUTERS/Denis Sinyakov
A traffic light in Moscow is covered with a transparent image of Russian Prime Minister Vladimir Putin above a sign saying "STOP." Thousands of supporters of Putin attended rallies across Russia on Saturday to back his bid for the presidency, trying to outdo mass nationwide protests staged by his opponents. (AFP Photo/Yuri Kadobnov)
