I fear that Issa and Grassley are aiming to low.
You typically start at the bottom and work your way up on these sorts of things. It helps to get the underlings to flip and start talking.
Jim's Rules of Carry: 1. Any gun is better than no gun. 2. A gun that is reliable is better than a gun that is not. 3. A hole in the right place is better than a hole in the wrong place. 4. A bigger hole is a better hole.
no guns = might makes right