Pussy Riot attacked by whip-wielding Cossacks in Sochi

Members of the Russian protest group Pussy Riot are beaten with whips by Russian security police after trying to perform at the Winter up for Snowmail, your daily preview of what is on Channel 4 News, sent straight to your inbox, here: Missed Channel 4 News? Catch up on the last seven days here: Channel 4 News weather forecast, with Liam Dutton: All the latest bl