Philadelphia-based Comcast announced a new set of security camera features designed to help consumers better spot package-theft “Grinches” this holiday season, including the ability to filter motion activity by people or by vehicles. Using artificial intelligence and 24/7 video recording, the company’s Xfinity indoor + outdoor camera now can automatically zoom in on the license plate of a car or the face of someone at the front door, footage that can be easily saved and shared with law enforcement.