Subway 'Bomb' Rattles Rome Shoebox device sparks bomb scare By Rob Quinn, Newser Staff Posted Dec 22, 2010 3:22 AM CST 0 comments Comments Police officers patrol the access to the rails at the subway station of Rebibbia after a bomb scare in Rome yesterday. (AP Photo/Angelo Carconi) (Newser) – A fake bomb sparked a major scare in the Rome subway system yesterday. Bomb disposal experts discovered that the device—found on an empty subway car at the end of the line—contained a cement-like powder instead of explosives and didn't have a trigger mechanism, AP reports. The city could "breath a sigh of relief," Rome's mayor told reporters. "It's a bluff, a provocation in bad taste that regardless showed there was no danger of attacks in our city," he said. Officials throughout Europe are on alert as terrorist "chatter" concerning holiday attacks is on the rise.