 In early November 2012 prosecutors applied under anti @-@ extremism legislation to Zamoskvoretsky District Court to ban several Pussy Riot videos , including the video of the group 's performance in the Cathedral of Christ the Savior . Materials found to be extremist by a court are added to the Federal List of Extremist Materials maintained by the Ministry of Justice , potentially making it a criminal offense to disseminate them within Russia . After a hearing on November 29 , four Pussy Riot videos , including the " punk prayer " , were declared extremist . The ruling restricted access to the videos and to Pussy Riot 's LiveJournal blog and other websites . 
