The artistic director of the Bolshoi ballet Sergei Filin has left hospital in Moscow bound for specialist treatment in Germany to try and save his sight.<br /><br />Filin has said he knows who attacked him with acid last month, but is refusing to talk for now until investigators make an announcement.<br /><br />He said he remains optimistic that he will see his children again.<br />http://www.euronews.net/
