They are discussing the views of judge Roberts views on the 1st amendment and pornography. The Senator who is leading the questioning is a staunch anti-porner. Roberts really didn't give a whole lot to them but the Washington Post
http://www.washingtonpost.com should have video on it if you are interested. I do believe it is Senator DeWine's questioning. They have a live feed there and also have options for more videos at the lower right of the viewer. They will likely have his questioning up there as a seperate video for viewing shortly after his questioning is done.