Well, regardless of opinion, be it left, right or centre, drugs will be taken, have been for millenium, probably will be for milleniums yet to come, be they pharmacutical or recreational. Oddly enough, both have found benefits in the other (Ecstasy is excellent for helping patients with Autism for example).
I've not got Quicktime installed at the moment, so I can't watch the video, but from the sounds of things, it sounds like an extreme way to raid a party. That said, it is not uncommon for said dealers to be armed, and possibly dousing the location in Tear Gas or whatever was felt to be the most thorough way of ensuring that people actually stayed alive, without being there, I couldn't say.
Dogs are not uncommon at drug hauls, and they tend to be trained to attack people who they can smell drugs on, that said, marijuana smoke sticks to everyone, so everyone could be a target, care needs to be taken when using dogs as a weapon rather than a search device.
That said, Recreational drugs are vastly over demonised, you only have to have a really good read of an aspirin bottle to see that the death rate for side-effects to things like Ecstasy and Marijuana is actually pretty good when compared to a lot of medical drugs. Remember, for every possible side-effect listed in your medication, there must have been a fair number of people who have actually had that condition and it's been directly linked to that medicine.
I think a lot of this was 'Oooooh look at the big bad drug dealers, they fund Terrorists'. This always make me laugh, btw, since the two sets of people that are least likely to be friends are the Drug Barons, who thrive on the pleasure industry, and radical Fundamentalists, who believe it is one of the ultimate sins.
Anyway, armoured cars and machine guns sounds more like a raid on a Heroin factory than a house party.