Curtis: I'm still pretty pro gun control. And I think we need more of it. But you know, everything that David's saying actually causes me to like, well, okay, this is not a simplistic us versus them. Us is right. Them is automatically wrong. We often operate between with one scenario that we approach the debate when the other scenario is true. The truth is, and this is the argument that I make, we don't know how to solve the mass shooting problem.We have some good faith ideas about how to make it better but we don't have sufficient evidence that even these good faith ideas will work.