Pedestrians wave white cloths and flowers as they greet cars taking part in the anti-Putin motor rally in Moscow on February 19, 2012. Hundreds of Moscow drivers flying white balloons and ribbons circled the Kremlin on Sunday in noisy protest against Prime Minister Vladimir Putin's likely return as president in March 4 polls.The second such auto rally in three weeks was due to be picked up in other cities as the opposition sought to keep up momentum after launching the biggest wave of anti-Putin rallies in his 12-year rule in December. AFP PHOTO / NATALIA KOLESNIKOVA

Pedestrians wave white cloths and flowers as they greet cars taking part in the anti-Putin motor rally in Moscow on February 19, 2012. Hundreds of Moscow drivers flying white balloons and ribbons circled the Kremlin on Sunday in noisy protest against Prime Minister Vladimir Putin's likely return as president in March 4 polls.The second such auto rally in three weeks was due to be picked up in other cities as the opposition sought to keep up momentum after launching the biggest wave of anti-Putin rallies in his 12-year rule in December. AFP PHOTO / NATALIA KOLESNIKOVA

Pedestrians wave white cloths and flowers as they greet cars taking part in the anti-Putin motor rally in Moscow on February 19, 2012. Hundreds of Moscow drivers flying white balloons and ribbons circled the Kremlin on Sunday in noisy protest against Prime Minister Vladimir Putin's likely return as president in March 4 polls.The second such auto rally in three weeks was due to be picked up in other cities as the opposition sought to keep up momentum after launching the biggest wave of anti-Putin rallies in his 12-year rule in December. AFP PHOTO / NATALIA KOLESNIKOVA

Pedestrians wave white cloths and flowers as they greet cars taking part in the anti-Putin motor rally in Moscow on February 19, 2012. Hundreds of Moscow drivers flying white balloons and ribbons circled the Kremlin on Sunday in noisy protest against Prime Minister Vladimir Putin's likely return as president in March 4 polls.The second such auto rally in three weeks was due to be picked up in other cities as the opposition sought to keep up momentum after launching the biggest wave of anti-Putin rallies in his 12-year rule in December. AFP PHOTO / NATALIA KOLESNIKOVA

A man shows V-sign for victory while driving his car with the white ribbons attached to his vehicle in central Moscow on February 19, 2012. Hundreds of Moscow drivers flying white balloons and ribbons circled the Kremlin on Sunday in noisy protest against Prime Minister Vladimir Putin's likely return as president in March 4 polls.The second such auto rally in three weeks was due to be picked up in other cities as the opposition sought to keep up momentum after launching the biggest wave of anti-Putin rallies in his 12-year rule in December. AFP PHOTO / NATALIA KOLESNIKOVA

Pedestrian wave? white cloths as he greets cars taking part in the anti-Putin motor rally in Moscow on February 19, 2012. Hundreds of Moscow drivers flying white balloons and ribbons circled the Kremlin on Sunday in noisy protest against Prime Minister Vladimir Putin's likely return as president in March 4 polls.The second such auto rally in three weeks was due to be picked up in other cities as the opposition sought to keep up momentum after launching the biggest wave of anti-Putin rallies in his 12-year rule in December. AFP PHOTO / NATALIA KOLESNIKOVA

Motorists wave white ribbons while riding in a car in central Moscow on February 19, 2012. Hundreds of Moscow drivers flying white balloons and ribbons circled the Kremlin on Sunday in noisy protest against Prime Minister Vladimir Putin's likely return as president in March 4 polls.The second such auto rally in three weeks was due to be picked up in other cities as the opposition sought to keep up momentum after launching the biggest wave of anti-Putin rallies in his 12-year rule in December. AFP PHOTO / NATALIA KOLESNIKOVA

A pedestrians waves a white cloths as she greets cars taking part in the anti-Putin motor rally in Moscow on February 19, 2012. Hundreds of Moscow drivers flying white balloons and ribbons circled the Kremlin on Sunday in noisy protest against Prime Minister Vladimir Putin's likely return as president in March 4 polls.The second such auto rally in three weeks was due to be picked up in other cities as the opposition sought to keep up momentum after launching the biggest wave of anti-Putin rallies in his 12-year rule in December. AFP PHOTO / NATALIA KOLESNIKOVA

A driver prepares his car to take part in the anti-Putin motor rally in Moscow on February 19, 2012. Hundreds of Moscow drivers flying white balloons and ribbons circled the Kremlin on Sunday in noisy protest against Prime Minister Vladimir Putin's likely return as president in March 4 polls.The second such auto rally in three weeks was due to be picked up in other cities as the opposition sought to keep up momentum after launching the biggest wave of anti-Putin rallies in his 12-year rule in December. AFP PHOTO / NATALIA KOLESNIKOVA

A driver prepares her car to take part in the anti-Putin motor rally in Moscow on February 19, 2012. Hundreds of Moscow drivers flying white balloons and ribbons circled the Kremlin on Sunday in noisy protest against Prime Minister Vladimir Putin's likely return as president in March 4 polls.The second such auto rally in three weeks was due to be picked up in other cities as the opposition sought to keep up momentum after launching the biggest wave of anti-Putin rallies in his 12-year rule in December. AFP PHOTO / NATALIA KOLESNIKOVA

A driver prepares her car to take part in the anti-Putin motor rally in Moscow on February 19, 2012. Hundreds of Moscow drivers flying white balloons and ribbons circled the Kremlin on Sunday in noisy protest against Prime Minister Vladimir Putin's likely return as president in March 4 polls.The second such auto rally in three weeks was due to be picked up in other cities as the opposition sought to keep up momentum after launching the biggest wave of anti-Putin rallies in his 12-year rule in December. AFP PHOTO / NATALIA KOLESNIKOVA

A driver prepares his car to take part in the anti-Putin motor rally in Moscow on February 19, 2012. Hundreds of Moscow drivers flying white balloons and ribbons circled the Kremlin on Sunday in noisy protest against Prime Minister Vladimir Putin's likely return as president in March 4 polls.The second such auto rally in three weeks was due to be picked up in other cities as the opposition sought to keep up momentum after launching the biggest wave of anti-Putin rallies in his 12-year rule in December. AFP PHOTO / NATALIA KOLESNIKOVA

People prepare a bus to take part in the anti-Putin motor rally in Moscow on February 19, 2012. Hundreds of Moscow drivers flying white balloons and ribbons circled the Kremlin on Sunday in noisy protest against Prime Minister Vladimir Putin's likely return as president in March 4 polls.The second such auto rally in three weeks was due to be picked up in other cities as the opposition sought to keep up momentum after launching the biggest wave of anti-Putin rallies in his 12-year rule in December. AFP PHOTO / NATALIA KOLESNIKOVA

Boris Nemtsov, a former first deputy prime minister and opposition leader speaks with journalists before taking part in the anti-Putin motor rally in Moscow on February 19, 2012. Hundreds of Moscow drivers flying white balloons and ribbons circled the Kremlin on Sunday in noisy protest against Prime Minister Vladimir Putin's likely return as president in March 4 polls.The second such auto rally in three weeks was due to be picked up in other cities as the opposition sought to keep up momentum after launching the biggest wave of anti-Putin rallies in his 12-year rule in December. AFP PHOTO / NATALIA KOLESNIKOVA