U.S.Vice President Joe Biden (2nd L) poses for a picture with Russian opposition leaders Oksana Dmitriyeva (L), Nina Ostanina (3rd L), Boris Nemtsov (4th L), Vladimir Ryzhkov (2nd R) and opposition leader and former world chess champion Garry Kasparov in Moscow March 10, 2011. Biden is on the second day of an official visit, meeting top officials in the Russian capital. REUTERS/Alexander Natruskin (RUSSIA - Tags: POLITICS)