Russian President Dmitry Medvedev speaks to the Cabinet at a meeting, in Moscow's Kremlin, Tuesday, June 29, 2010. (AP photo/RIA Novosti, Vladimir Rodionov, Presidential Press Service)
People have rest in Kolomenskoye park in Moscow, Russia, Thursday, July 15, 2010. A heat wave hit central Russia, breaking temperature records going higher than 30 C (86 F) for at least two weeks. (AP Photo/Mikhail Metzel)
Argentina's David Nalbandian reacts after he defeated Russia's Mikhail Youzhny during their Davis Cup World Group quarterfinal tennis match in Moscow, Russia, Sunday, July 11, 2010. (AP Photo/Misha Japaridze)
Serena Williams of the United States celebrates a point win over Russia's Vera Zvonareva during their women's singles final at the All England Lawn Tennis Championships at Wimbledon, Saturday, July 3, 2010. (AP Photo/Alastair Grant)
Serena Williams, left, of the U.S. serves as her sister Venus waits at the net during their doubles match against Dominika Cibulkova of Slovakia and Anastasia Pavlyuchenkova of Russia at the All England Lawn Tennis Championships at Wimbledon on Saturday, June 26, 2010. (AP Photo/Sang Tan)
ASSOCIATED PRESS Serena Williams makes a forehand return to Maria Sharapova of Russia, during their women's singles match on the Centre Court at the All England Lawn Tennis Championships at Wimbledon, Monday, June 28, 2010.
Associated Press
President Obama and Russia's President Dmitry Medvedev leave a news conference at the White House on Thursday. Mr. Obama said he succeeded in "resetting" the U.S.-Russia relationship.
*FILE PHOTO.* President Barack Obama and Russia's President Dmitry Medvedev take part in a joint news conference in the East Room of the White House in Washington, Thursday, June 24, 2010. (AP Photo/Pablo Martinez Monsivais)
President Barack Obama and Russia's President Dmitry Medvedev, left, seen during talks in the White House in Washington, Thursday, June 24, 2010. (AP Photo/RAI-Novosti, Mikhail Klimenthev, Presidential Press Service)
President Barack Obama, accompanied by Russian President Dmitry Medvedev, and others, waves as they leave Ray's Hell Burger in Arlington, Va., Thursday, June 24, 2010. (AP Photo/Charles Dharapak)
President Barack Obama and Russia's President Dmitry Medvedev order burgers during an unscheduled visit to Ray's Hell Burger in Arlington, Va., Thursday, June 24, 2010. (AP Photo/Charles Dharapak)
President Barack Obama and Russia's President Dmitry Medvedev eat burgers during an unscheduled visit to Ray's Hell Burger in Arlington, Va., Thursday, June 24, 2010. (AP Photo/Charles Dharapak)
President Barack Obama waits to be announced before a joint news conference with Russia's President Dmitry Medvedev, Thursday, June 24, 2010, in the East Room of the White House in Washington. (AP Photo/Pablo Martinez Monsivais)
President Barack Obama and Russia's President Dmitry Medvedev arrive for their joint news conference in the East Room of the White House in Washington, Thursday, June 24, 2010. (AP Photo/J. Scott Applewhite)
U.S. President Barack Obama and Russian President Dmitry Medvedev take a question from a Russian journalist in the East Room of the White House following their meeting in Washington on June 24, 2010. UPI/Roger L. Wollenberg
President Barack Obama and Russia's President Dmitry Medvedev take part in a joint news conference in the East Room of the White House in Washington, Thursday, June 24, 2010. (AP Photo/J. Scott Applewhite)
President Barack Obama and Russian President Dmitry Medvedev take part in a joint news conference in the East Room of the White House in Washington, Thursday, June 24, 2010. (AP Photo/Pablo Martinez Monsivais)
U.S. President Barack Obama and Russian President Dmitry Medvedev depart after speaking to the media in the East Room of the White House following their meeting in Washington on June 24, 2010. UPI/Roger L. Wollenberg
U.S. President Barack Obama (R) and Russian President Dmitry Medvedev walk from the North Portico of the White House on their way to the U.S. Chamber of Congress to discuss trade issues after their meeting in Washington on June 24, 2010. UPI/Roger L. Wollenberg
U.S. President Barack Obama (R) and Russian President Dmitry Medvedev walk from the White House on their way to the U.S. Chamber of Congress to discuss trade issues after their meeting in Washington on June 24, 2010. UPI/Roger L. Wollenberg