A report authored by the Departments of Justice, Defense and Homeland Security said that advances in user authorization technology and electronic recovery technology are promising and should be evaluated by soldiers, police officers and others as a way to limit who can fire a particular gun. User authorization uses biometrics to lock a gun unless an authorized user is handling it while electronic recovery holds promise for tracing stolen weapons, the report stated. The DOJ and DHS have also committed ... Log in to view full article.