Three members of Pussy Riot are on trial , facing a potential seven-year sentence . `` It must be not be cruel punishment . '' They sang an anti-Putin song in Moscow 's Christ Savior Cathedral . Alex Kapranos of Franz Ferdinand and Pete Townshend of The Who have also been arrested for their role in the protest. Their open letter comes as Vladimir Putin visits London .
Three members of Pussy Riot are on trial , facing a potential seven-year sentence . They sang an anti-Putin song in Moscow 's Christ Savior Cathedral . Alex Kapranos of Franz Ferdinand and Pete Townshend of The Who have also been arrested for their role in the protest. Their open letter comes as Vladimir Putin visits London .