Comment by spacechild1

> What would you do in this situation?

Follow the protocol. If you lose your nerves because of people blowing a whistle, you're in the wrong job.

> Alex seemed to put hands on an officer

Where do you see that? All I see is that he raised his left hand in a protective manner, likely to keep the agent at a distance and protect himself from the pepper spray. After that gesture he turns away from the agent to help the woman on the ground. That's when they grapple him from behind and wrestle him to the ground. At no point did Alex behave in a threatening way or physically attack an agent. The DHS report does not mention any threating behavior either.