Abstract: A disclosed security system can identify security threats such as terrorists, criminals or persons-of-interest visiting public venues such as airports, stadiums, hospitals, embassies, convention centers or arenas. The security system may integrate a wireless device tracking system, a server system, and a camera system. The wireless device tracking system may track and locate wireless device carried by a person or carried in a car as the person is visiting a venue. The camera system may include facial recognition technology to identify persons listed on a law enforcement watch list. The camera system may also include thermal imaging capabilities to identify whether a person is carrying a weapon. The information obtained from the wireless device tracking system and the camera systems can be processed by the server system to identify suspected threats in proximity to the venue.