A member of the Research and Intervention Brigades (BRI) controls a drone prior to a training exercise, in the event of a terrorist attack, in the presence of the French Interior Minister Bernard Cazeneuve (unseen), members of the National Gendarmerie Intervention Group (GIGN) and Recherche Assistance Intervention Dissuasion (RAID) at la Gare Montparnasse, in central Paris on April 20, 2016. (Photo by Miguel Medina/Reuters)
