Comment by CamperBob2

Milgram's a better example, without the baggage that Zimbardo brought to the table. Milgram's lesson: if an authority figure calls for an illegal, harmful, or unethical action, they won't have to go very far down the line until they find someone willing to carry it out, even if the first couple of people refuse.

ICE is said to be paying signing bonuses up to $50,000 [1]. That must seem like a fortune to the sorts of people they are recruiting... people who would happily do stuff like this for free if given permission.

1: https://www.bbc.com/news/articles/cqle5newg0no