Russian Prime Minister Dmitry Medvedev stands in his office in Moscow on April 9, 2013, before an interview with a Russian television channel.

Russian President Vladimir Putin had a busy day Monday: (clockwise from top left) Sitting in a Volkswagen XL 1 Hybrid car in Hanover, Germany; laughing with German Chancellor Angela Merkel; arriving at Schiphol airport in The Netherlands; drinking a toast with Dutch Queen Beatrix at the Hermitage Museum in Amsterdam.

Demonstrators participate in a protest near the National Maritime Museum, where Putin was having dinner, in Amsterdam on April 8, 2013. The protesters were denouncing a so-called 'homosexual propaganda ban' in Russia which was enacted in January.

An eye-opening experience for Russian President Vladimir Putin (left) as he is confronted by a topless demonstrator during a tour of the Hanover Fair in Hanover, Germany, on April 8, 2013. He was accompanied by German Chancellor Angela Merkel (center right) and Volkswagen Chief Executive Officer Martin Winterkorn (extreme right).

German Chancellor Angela Merkel and Russian President Vladimir Putin exchange glances after the incident involving topless demonstrators.

Security staff stop another topless demonstrator at the Volkswagen stand at the Hanover Fair.

A demonstrator is held by security staff.

A Greenpeace activist, dressed as a polar bear, sits inside a police car after being detained outside Gazprom's headquarters in Moscow, Russia, on Sept. 5, 2012. Russian and international environmentalists are protesting against Gazprom's plans to pioneer oil drilling in the Arctic.

A supporter of "Pussy Riot" waits outside the court where three members of the band are on trial, in Moscow on July 30, 2012.

Opposition members march in Moscow on Tuesday, June 12, 2012. Tens of thousands of Russians flooded Moscow's tree-lined boulevards Tuesday in the first massive protest against President Vladimir Putin's rule since his inauguration, as investigators sought to raise the heat on the opposition by summoning some of its leaders for questioning just an hour before the march.

Opposition activists rally in Moscow on June 12, 2012.

Russian President Vladimir Putin attends an awards ceremony for achievements in culture and science in Moscow's Kremlin on June 12, 2012.

Riot police form a line as opposition members march in central Moscow on June 12, 2012.

Russia's president-elect Vladimir Putin walks down Andreyevsky (St.Andrew's ) Hall of the Great Kremlin Palace in Moscow May 7, as he arrives to take his oath of office and become Russia's president for a historic third mandate at a glittering ceremony inside the Kremlin.

Russian people march along a street during an opposition's protest rally in Moscow on May 6. Russian riot police violently clashed with protesters at a rally on the eve of Vladimir Putin's return for a third Kremlin term, arresting over 400 people including opposition leaders.

Russian President Vladimir Putin and former President Dmitry Medvedev, right, during the inauguration ceremony at the Cathedral Square in the Kremlin in Moscow, May 7. Vladimir Putin took the oath, saying he considers "service to the fatherland and our nation to be the meaning of my life."

Russian Police officers detain opposition supporters during a rally in Moscow on May 6.

Indonesian workers shout slogans during a rally to mark May Day in Jakarta on May 1, 2012. Thousands of Indonesian workers staged the rally demanding the government raise the minimum wage and reject outsourcing.

A man carries a poster reading "Putin is our President!" during the May Labor Day rally of the Russian Trade Unions and United Russia party in Moscow on May 1, 2012. Russia's president-elect Vladimir Putin and outgoing head of state Dmitry Medvedev on Tuesday joined over 100,000 people in a Soviet-style mass march through Moscow.

Protesters dance around the burnt effigy of Philippine President Benigno Aquino III during a May Day rally near the Presidential Palace in Manila on May 1, 2012. Thousands of workers marched under a brutal sun in Manila to demand a wage increase amid an onslaught of oil price increases, but the Philippine President rejected a $3 daily pay hike which the workers have been demanding since 1999 and warned may worsen inflation, spark layoffs and turn away foreign investors.

Bahraini Shiites attend a demonstration celebrating Labor Day in the village of Muqsha'a on April 30, 2012. Many Shiite employees were either dismissed or indefinitely suspended from their jobs in the wake of a brutal crackdown by the Bahrain government.

Indian sex workers hold candles and posters as they march in a May Day rally asking for their rights and the recognition of their profession in Kolkata, late on April 30, 2012.

Visitors takes picture in front of Tiananmen gate in Beijing, China, on May 1, 2012. Tens of thousands of visitors flock to the area around Tiananmen Square to enjoy a public holiday to mark May Day.

Russian President Dmitry Medvedev (2nd L), Prime Minister Vladimir Putin (2nd R), Independent Trade Unions' Chairman Mikhail Shmakov (L) and State Duma deputy Viktor Pinsky (R) toast in a bar after attending a rally in Moscow on May 1, 2012.

Garment workers attend a rally to mark May Day at Paltan in Dhaka, Bangladesh, on May 1, 2012. Different workers organizations have arranged programmes inluding a rally, seminars and cultural events as they demand the establishment of workers' rights.

Laborers drilling a mountain to extract rocks inside a stone quarry on May 1, 2012 in Srinagar, Kashmir. Local labor leaders told media their colleagues at many construction sites were denied a May Day public holiday by their employers.