The term for this is 'WAMI' - Wide Area Motion Imagery[1]. Here's a Bloomberg article about an instance of it in Baltimore[2] (although this wasn't where I lear

The term for this is 'WAMI' - Wide Area Motion Imagery[1]. Here's a Bloomberg article about an instance of it in Baltimore[2] (although this wasn't where I learned about it first, like you I can't find my original source either) 1: https://en.wikipedia.org/wiki/Wide-area_motion_imagery https://en.wikipedia.org/wiki/Wide-area_motion_imagery 2: https://www.bloomberg.com/features/2016-baltimore-secret-surveillance https://www.bloomberg.com/features/2016-baltimore-secret-sur...