new developments in the capitol riot investigation. the justice department just released the longest video yet of the january 6th insurrection. it's three hours long, graphic video there that took place in the capitol tunnel. the video shows some of the most violent confrontations with rioters as police desperately tried to hold the line. let me bring in my colleague jessica schneider, what more does this video show? >> poppy, it shows three hours worth of that battle with the capitol police and the rioters. all the while, the capitol police holding them back. this is video cnn had to pseudo obtain from the justice department. it's the most in-depth look we have seen from the particular location on the lower west terrace of the capitol. it's a video that shows out the drawn out battle between rioters and capitol police. wires grabbed two of the police