Hidden Level teams with local police to guard Texas stadiums from illegal drones at sporting events By Jim Magill Sensor system provider Hidden Level has teamed up with the Unmanned Aerial Systems unit of the Arlington, Texas Police department to protect the city’s sports and entertainment district from illegal drone incursions. The company’s Airspace Monitoring Service … [Read more...] about Illegal Drones at Sporting Events: Hidden Level Combines Rooftop Sensors and Sophisticated Software