>> what about a red flag law? federal red flag law? >> in a way what i'm talking about are red flags. tr in every one of - chicago, illinois has red flags. >> you keep bringing up chicago, which i understand. but the guns in chicago come in from other places because there are a patchwork of laws across the country, there's no federal law. >> right. again, we stop -- i saw it when i chaired homeland, so many terror attacks because we got the threat information in we can use the same formula here domestically, although it's a little different. the constitution didn't apply overseas, but we can d...