Suspicious times

I don't know if it's just me, but to me it seems like that nowadays, after the school shootings in Finland, everyone is looking around and trying to find some kind of clues of a misbehaving that may lead to something tragic. If a young man steps into the bus with combat trousers, headphones and a slick smile, all the grannies grasp their handbags tighter. "I bet he's going to shoot me first." Oh c'mon...