LF: What do you say to people who argue that these kinds of regulations don't work, that criminals will always find some way to get guns? GW: All of the research evidence shows that increasing regulation of firearms—whether the firearms themselves, the people who are allowed to have them, or the conditions under which they are bought and sold—makes a difference. I think it can be hard to prove that any one law makes a difference because laws are enacted in groups,... (GunPolicy.org)