shooting involving one shooter and the number of people he hit in american history. sandy hook, the worst school shooting in american history. >> if you're going to talk about that, you can't bring in all the hand guns and all the -- >> i agree. >> that's a separate issue. >> i agree. >> every time you make this -- >> penn, you have to make it more difficult for these people. you have to stop the criminals getting the hand guns. you have to stop the mass shooters getting assault rifles. haven't you? >> every time you make this argument, every time you make it, what you do is you start with the mass murderers, then you will ask how many gun shootings there are, and those are two very, very different things. >> billy, i am angry about this because i see nothing happening. >> you have been out in front of this. listen, in the 1980s, i testified -- in the '90s i testified for lieberman with hilary rosen and jack valente on violence in the media. the entertainment industry hid behind the first amendment to line their pockets with billions