Justice Department lawyers had previously attended hearings in the case and signaled the possibility the government may intervene , citing possible `` law enforcement '' secrets . Justice Department has invoked ` ` state secrets privilege '' in private cases . Case involves man who claims he was defamed by group United Against Nuclear Iran . Government lawyers filed classified document that may provide more information to judge .
Justice Department has invoked ` ` state secrets privilege '' in private cases . Case involves man who claims he was defamed by group United Against Nuclear Iran . Government lawyers filed classified document that may provide more information to judge .