Prominent anti-corruption blogger and opposition leader Alexei Navalny speaks during an interview with Reuters at his office in Moscow August 1, 2012. Russian protest leader Navalny said on Wednesday he was sure he would go to prison after being charged with theft, and warned this was just the start of a crackdown on dissent by President Vladimir Putin. To match Interview RUSSIA-NAVALNY/ REUTERS/Sergei Karpukhin (RUSSIA - Tags: POLITICS)