Assault Weapons Ban Likely To Die So That Broader Gun Policy Legislation Can Live

It's unlikely that the kind of people who commit the crimes that this legislation is directed at would 1) have a 3d printer in their living rooms, and 2) be able to form the intent and skill and take the time to fabricate one.  

It's impressive how outlawing something prevents it.  For instance, even though there are some who would break the law, others wouldn't, for many reasons, and those others mean fewer opportunities for someone with the desire and intent (but lacking skills to make one) getting their hands on it.  The Sandy Hook shooter, perhaps.
Read the Article at HuffingtonPost