all member states. -- based on equality to all member states. >> georgios katrougalos a member of theuropean parliament. in egypt two sons of ousted president hosni mubarak has been freed four years after they were arrested along with their father. they still face a retrial on corruption charges. their release comes as at least 15 people were killed sunday in antigovernment protests,4 years to the day since egypt's arab spring. more from cairo. >> concerned that the sons have left the prison. we had a false alarm last week and it appears they have been released. one day after the four-year anniversary of the attentive resolution in egypt -- the attempted revolution in egypt in 2011. they have been acquitted on two of the three charges leveled against them, embezzlement and corruption. there is an insider trading case outstanding and they will be back in court in march to face charges paid the symbolism is clear. the revolution has come -- 18 protesters and the release of mubarak. >> let's talk about the violence on sunday. what happened, exactly? >> it started on friday, two days befo