SOCHI, Russia (Reuters) - Russian President Vladimir Putin said on Thursday he hoped Moscow could cooperate with Washington in a broader range of fields.   We have dialogue at the work level and on the level of the special services, the defense ministries, the foreign ministries. We achieve joint results,  Putin said at a forum with scholars.  We have to expand our cooperation to other spheres.  
Putin says Russia hopes to broaden cooperation with U.S.