Participants of an opposition rally march along Yakimanka Street, Moscow.

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Participants of an opposition rally march along Yakimanka Street, Moscow.

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Participants of an opposition rally march along Yakimanka Street, Moscow.

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Participants of an opposition rally march along Yakimanka Street, Moscow.

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Participants of an opposition rally march along Yakimanka Street, Moscow.

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Participants of an opposition rally march along Yakimanka Street, Moscow.

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Participants of an opposition rally march along Yakimanka Street, Moscow.

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Participants of an opposition rally march along Yakimanka Street, Moscow.

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Participants of an opposition rally march along Yakimanka Street, Moscow.

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Participants of an opposition rally march along Yakimanka Street, Moscow.

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A girl records an opposition rally march along Yakimanka Street, Moscow, with her iPad.

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Participants of an opposition rally march along Yakimanka Street, Moscow.

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Participants of an opposition rally march along Yakimanka Street, Moscow.

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Police cordon the street during an opposition rally on Yakimanka Street, Moscow.

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Participants of an opposition rally march along Yakimanka Street, Moscow.

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Police cordon during the opposition march in Bolshaya Yakimanka Street in Moscow.

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A police cordon on Moscow's Bolshaya Yakimanka Street during an opposition march.

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Police cordon during the opposition march in Bolshaya Yakimanka Street in Moscow.

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Police cordon during the opposition march in Bolshaya Yakimanka Street in Moscow.

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Customers of a cafe on Yakimanka Street watch an opposition march in Moscow.

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Opposition march in Bolshaya Yakimanka Street in Moscow.

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Oppositioner Alexei Navalny takes part in an opposition rally in Bolshaya Yakimanka Street in Moscow.

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Opposition march in Bolshaya Yakimanka Street in Moscow.

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State Duma member Ilya Ponomaryov takes part in an opposition rally in Bolshaya Yakimanka Street in Moscow.

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Oppositioner Alexei Navalny, center, and his wife, Yulia, and Ilya Yashin, right, member of the RPR-PARNAS federal political council's bureau, takes part in an opposition rally in Bolshaya Yakimanka Street in Moscow.

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Oppositioner Alexei Navalny, center, takes part in an opposition rally in Bolshaya Yakimanka Street in Moscow.

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RPR-PARNAS co-chairman Mikhail Kasyanov, left, and oppositioner Alexei Navalny, center, take part in an opposition rally in Bolshaya Yakimanka Street in Moscow.

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Opposition march in Bolshaya Yakimanka Street in Moscow.

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Opposition march in Bolshaya Yakimanka Street in Moscow.

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State Dum ex-member Gennady Gudkov atakes part in an opposition rally in Bolshaya Yakimanka Street in Moscow.

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RPR-PARNAS member Mikhail Kasyanov takes part in an opposition rally in Bolshaya Yakimanka Street in Moscow.

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Opposition march in Bolshaya Yakimanka Street in Moscow.

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Opposition march in Bolshaya Yakimanka Street in Moscow.

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State Duma member Dmitry Gudkov takes part in an opposition rally in Bolshaya Yakimanka Street in Moscow.

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Opposition march in Bolshaya Yakimanka Street in Moscow.

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Poet Dmitry Bykov takes part in an opposition rally in Bolshaya Yakimanka Street in Moscow.

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Ilya Yashin, right, member of the RPR-PARNAS federal political council's bureau, takes part in an opposition rally in Bolshaya Yakimanka Street in Moscow.

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Opposition march in Bolshaya Yakimanka Street in Moscow.

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Opposition march in Bolshaya Yakimanka Street in Moscow.

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Opposition march in Bolshaya Yakimanka Street in Moscow.

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Opposition march in Bolshaya Yakimanka Street in Moscow.

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Opposition march in Bolshaya Yakimanka Street in Moscow.

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"US agent" stickers on the ground during an opposition march in Bolshaya Yakimanka Street in Moscow.

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Banners distributed during the opposition march in Bolshaya Yakimanka Street in Moscow.

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Opposition march in Bolshaya Yakimanka Street in Moscow.

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Opposition march in Bolshaya Yakimanka Street in Moscow.

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