Prominent anti-corruption blogger Alexei Navalny (L) speaks with opposition leader Garry Kasparov during a protest demanding fair elections in central Moscow March 5, 2012. Thousands of protesters chanting "Russia without Putin" took to the streets of Moscow and St Petersburg on Monday to challenge Vladimir Putin's victory in a presidential election which international monitors said was unfair. REUTERS/Sergei Karpukhin (RUSSIA - Tags: POLITICS ELECTIONS CIVIL UNREST)