Crowd Patrcontrol News Today

Of new blast its and smoke filled which is closer to the entrance of the convention center. and you can see in our shot that smoke in the distance. what weve also felt is the effects of what feels like cs gas or tear gas. thats people coming from this direction with, you know, runny noses, spraying water in their faces which, would appear to be crowd patrcontrol at this point. we know this particular area has cleared out substantially and the police have moved in in force. >> they have a helicop...