Bang Rounds News Today

[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, its not entirely clear. it sounded like a flash bang and m...