Long-sought members of the Red Army Faction (RAF) left-wing group that posed a terrorist threat to Germany over decades are now thought to have committed further robberies, prosecutors said on Wednesday. A new video, photographs and fresh information on the former terrorists Burkhard Garweg and Ernst-Volker Staub is being used to track them down. The two men are alleged to have mounted attacks on cash transports and supermarkets between 1999 and 2016, along with Daniela Klette, who was arrested in Berlin at the start of the year. They are now linked to a further three robberies, taking the num…