You may want to edit out your Chicago murders, as I believe Chicago has some of the toughest gun laws in the nation. I guess those criminals forgot they can't have guns again. Darn those bad guys, they should get some more counseling, so they stop doing illegal things. Actually I laughed reading an article where I think it was Chief of police asking for people to quit saying they have tough gun laws, which they do, but also asking for tougher sentences for criminals in the first place.
Efficiency. Cars are designed for travel and suit that purpose better. Can you kill with a car? Of course. Is it easier to kill with a car than a rifle? Of course not. But then, you knew this.
Private sales can be. But that has nothing to do with a gun show. If I wanted to sell a gun to my neighbor, or someone down the road, I could. Florida allows it, and that's that. If I were smart, I'd pay the $10 to my local FFA to do a background check on the guy, and I'd make the guy sign a statement with his driver's license number to state he purchased the weapon from me on whatever date. But I don't have to do any of that. Has nothing to do with a gun show. Just happens to be that people go to buy guns more at guns shows, and private sellers bring their weapons to the gun show because they know there are buyers there. But any commercial dealer at the show goes through a check, because they are FFLs. So Lucrum is right - there is no gun show loophole. The "loophole", if there is one, is private sales related. Just so happens it occurs most at gun shows because that's where buyer meets seller.
Sure, dopey. Answered elsewhere, but relevant. "For them (taggants) to work, they would have to be non-combustible. They would also have to be big enough to be read or at least analyzed. That means you would be putting something into the cartridge that takes up space yet does not contribute to the combustion of the powder. That means ever single reloading chart, book and list would have to be totally recalculated to compensate for the additional material in the cartridge. It would also cause problems with the guns as many use a gas port to cycle. Anything that is not burned up during the firing could jam the gun up. (A real problem with the Stoner AR design.) Lastly, it would be a logistical nightmare. Just how would you keep records to trace the tags? The paperwork alone would add a ton of cost to the purchase of every single box of ammo, which is the real reason this was proposed. If you can not ban something, you make it so expensive no one can afford it." http://answers.yahoo.com/question/index?qid=20130419041144AAZ34Iw