Looks like the DoJ has decided “screw it, we’ll just make the law up as we go,” and declared bump stocks to be machine guns.
Never mind that the ATF declared them to not be machine guns, since… you know… the law has a very specific definition of what a machine gun is, and bump stocks don’t fall into that definition.
Oh, and this was done without any new laws on the matter actually being passed.
yay.