One of the main things these aircraft do is to record video over long periods of time. It could follow vehicles from known work sites back to their origin, pinp

One of the main things these aircraft do is to record video over long periods of time. It could follow vehicles from known work sites back to their origin, pinpointing the homes of day laborers. That's one thing I can think of, there are probably a lot more. Like sigint on certain types of mobile phones calling internationally etc.