Great observation. This is exactly the kind of question a video would have recorded. Most cops have dash vids, so why not head-mounts. BTW, I'm not a cop basher and generally like to give them the benefit of the doubt, but most of these raids in retrospect seem a little overkill. Hell, even David Koresh could have been arrested on a trip to town.
The militarizarion of law enforcement here is not a good thing IMO. When you have a hammer, everything starts to look like a nail. Recruiting posters in my town look like they are trying to form a delta force/seal/ranger unit or something. No norman rockwell posters of a beat cop talking kindly to a runaway kid.
That being said,,, i don’t have a problem with swat capabilities, or officers having assault rifles. Our cops should be as well-armed as their adversaries. IE,,, the photos of cops with Thompson subguns. But depts need to use this capability *very* sparingly, and continually instill respect for civil rights.