Russia's Maria Sharapova celebrates during her match with Marion Bartoli, of France, in the quarterfinals during the 2012 US Open tennis tournament, Wednesday, Sept. 5, 2012, in New York. (AP Photo/Darron Cummings)
This image taken from TV footage provided by the Associated Press Television News shows a place where two women stabbed to death were found Aug. 30, 2012, under this sign on the wall of their apartment in Kazan, Russia. The sign is presumably written with blood, prosecutors said adding that the murderer probably tried to mislead police by the writing that supports three members of the provocative feminist band jailed for their "punk prayer" at a Moscow cathedral. (Associated Press/APTN)
Opposition leader Boris Nemtsov speaks about his new book on the wealth of Russian President Vladimir Putin during a news conference in Moscow on Tuesday, Aug. 28, 2012. (AP Photo/Sergey Ponomarev)
Agnieszka Radwanska, of Poland, returns a shot to Nina Bratchikova, of Russia, at the 2012 US Open tennis tournament, Tuesday, Aug. 28, 2012, in New York. (AP Photo/Kathy Willens)
Britain's Andy Murray returns a shot to Alex Bogomolov Jr., of Russia, at the 2012 US Open Tennis tournament, Monday, Aug. 27, 2012, in New York. (AP Photo/Mike Groll)
Vendors wait for customers at a Moscow market on Wednesday, Aug. 22, 2012, the day on which Russia joined the World Trade Organization. (AP Photo/Misha Japaridze)
A masked supporter of the Russian punk group Pussy Riot waves a feminist flag from a balcony of a building at the court in Moscow, Russia, Friday, Aug. 17, 2012. A Moscow judge has sentenced each of three members of the provocative punk band Pussy Riot to two years in prison on hooliganism charges following a trial that has drawn international outrage as an emblem of Russia's intolerance to dissent. (AP Photo/Misha Japaridze)
**FILE** Russian Prime Minister Vladimir Putin (right) speaks Feb. 8, 2012, with Russian Orthodox Patriarch Kirill during his meeting with Russia's religious leaders in the St. Daniel Monastery in Moscow. (Associated Press/RIA-Novosti, Yana Lapikova, Government Press Service)
Campers, who are members of a volunteer security squad, walk through the camp at Lake Seliger in Russia’s Tver region. Camp Seliger was traditionally the home base of pro-Kremlin youth groups. The spirit of rebellion roiling Russia stretches even into the Seliger youth camp, an annual Kremlin-funded event. (Associated Press)
Russia's Evgeniya Kanaeva performs during the rhythmic gymnastics individual all-around qualifications at the 2012 Summer Olympics, Friday, Aug. 10, 2012, in London. (AP Photo/Julie Jacobson)