Why are gun rights supporters worried about bans on so-called assault weapons?

Gun rights supporters often point out that so-called assault weapons that some people seek to ban aren’t materially different from other guns that will remain allowed. I think that’s factually right (and some pro-gun-control liberals, such as my colleague Adam Winkler, agree). Assault weapons aren’t fully automatic; they are semiautomatics, like many tens of millions […]