Challenged i high speed trains. He immortalized video surveillance: four kids they crossed the tracks and left just before the arrival of Frecciargento 8523, whose machinist noticed their movements in the distance. It happened at the crossroads Santa Viola, at the first periphery of Bologna, on the line Bologna-Milan. The man blocked the train and managed to stop the train ride. Then he stopped one of the boys – who is less than 14 years old, therefore not responsible – who was warned by the train attendant about the dangerousness of the gesture and entrusted to his parents. The other three managed to get away and were identified by the Polfer. The episode follows a similar one a few days ago Borgo Panigale, where a group of 8 minors had behaved the same way. To notice them, while taking selfies on the tracks, a railway police officer who had managed to identify three, then punished.