Flock Safety and one of its long-time VCs, Bedrock Capital, announced Thursday that the startup raised a fresh $275 million at a $7.5 billion valuation. Flock makes computer vision-enabled video surveillance technology used by law enforcement as well as businesses, property management companies, and so on. It’s best known for its automatic license plate recognition tech, but Flock also makes gunshot detection tech marketed to schools, and recently acquired public safety drone company Aerodome. F...