Since you mention drones, this Browns University exhibition (#NoDAPL Movement) in Providence, RI is fascinating, https://www.brown.edu/research/facilities/haffenreffer-museu... and a talk makes some content available to those not in RI: https://www.brown.edu/academics/race-ethnicity/events/sioux-... seeing the footage is interesting for hackers/scientists/intellectuals, but I link these because the establishment made it hard to get that evidence.