I think this would be a good thing, especially for CCW in states like CA. Consider that when some states, like CA, play games with shall issue, etc., how can those states justify restricting their own residents when they have to recognize the "shall issue" permits from other states? The political juice held by LE administrators in a shall issue state is already being challenged. This law would vaporize it. When you have a state like CA unable to demonize guns "because they can", it will evolve the popular attitudes. Coupled with the upcoming redrawing of voting districts in CA (so politicos cannot set their own voting blocks), CA could (I say, "could") move into the real world. Forcing states to recognize and accept CCW permits from other states is just like how your driver's license works across state lines.