Mikhail Khodorkovsky, the one-time oil tycoon who spent a decade in President Vladimir Putin's prisons, staked a claim to the leadership of Russia's opposition as it staged its biggest demonstration in years.
Mikhail Khodorkovsky, the one-time oil tycoon who spent a decade in President Vladimir Putin's prisons, staked a claim to the leadership of Russia's opposition as it staged its biggest demonstration in years.