The NSW government has installed some new High Definition cameras on railway stations which identify faces to ‘stop a future terrorist attack’. Link. The problem is that most terrorists in western societies have no record, and have had no contact with the police. This was even true of most of the september 11 hijackers.
Telstra Europe has been having some issues with reliability in Europe. And in New Zealand a cop managed to shoot himself with a stun gun by accident, and use pepper spray on an inocent person. When using his stun gun, four times he missed altogether and shot himself once.