1300 policemen, 700 between police and financiers and 600 soldiers mobilized 24 hours a day until the end of October. In addition to the "Old" law enforcement, also a new digital "Big Brother" with 2500 cameras and various type of UAVs (Unmanned aerial vehicles) with the task of monitoring and control: the objective is to protect the about 300 thousand people a day expected for the "Expo" fair in Milan,...