Old Jeh just informed us that "gun violence" is a homeland security problem. Homeland has a huge amount of authority to do all kinds of things that might not be done easily by either the president or congress....or even the courts.
If Obama, by way of Homeland, decides that guns are a problem we may see some action from them soon. Anyone contemplating a shopping trip might want to get at it. I can't see any of this ending well for gun owners, especially if Hillary is allowed to carry on the policies of the current prez.