[bleep] [background sounds] david: canadian police firing tear gas near protesters in ottawa, this after making a hundred arrests yesterday while cracking down on truckers for defying orders to clear out. matt finn is following it all in ottawa. matt, i saw you in the last hour, and you could hear the sound -- we thought they were flash and bang rounds, but those were actually rounds from tear gas canisters, right? >> reporter: you know, it's not entirely clear. it sounded like a flash bang and maybe the tear gas canisters came afterwards. we can't really confirm that right now. but nonetheless, this is still a really tense moment because police are, you know, kind of systematically squeezing out some of the fine protesters her. our understanding that parliament is in session today, so you have the prime minister in there. these people not happy with the prime minister here. so this is pretty much the