united states of america. anything can be done if we put our minds to it. there's intersection between mental illness, how we treat it, the intersect between who should have a gun, who can purchase a gun and the idea of strengthening it to ensure the incidents don't keep happening over and over again. >> i hear you. i know that statistically kinds up that these shootings are irrelevant. they are 1% of all shootings overall. doesn't matter. they speak to issues we should be doing better on. the question is how. in canada, you want to buy a handgun. they say how is everything? is everything okay? they don't want to do that. who is they? that's what alison's father is talking about. do you think we need to do more in terms of who gets guns? >> absolutely. >> people say there are hundreds of laws on the books. enforce what is there. is it that simple?