“What was the goal?”
Create a fake gun crisis in Mexico that would result in gun control legislation being rammed down on the public with media help like ObamaCare was.
Concerning your responses...
I expect you are all theorizing as the rest of us and I suppose Issa is (create a crisis to legislate).
I do not believe in conspiracies. But if someone simply gave orders to not stop the guns at the border, then that becomes the keystone of the investigation. Who, then, gave that order and why?