Well, the Supreme Court (The ruling body whose job is to interpret the Constitution) says the 2nA is an Individual's Right to Keep and Bear Arms so...yup

We have basic gun control laws.

How about several weekends and more than a few thousand rounds of ammo.

I'm blamed for owning a firearm, yet someone can go and do this...100% completely exploit a situation and its a step in the right direction?

Guns cannot be regulated in a sensible way because 'sensible' is subjective.

Yes, it is subjective. Its subjective in the fact that several people here agree with my proposed licensing system. Its subjective in that a majority of this country's society is armed and law abiding

You mention people who carry guns are trigger happy, but blatantly ignore the article I first posted where the 'trigger happy armed citizen' exercised restraint in NOT using his firearm.

Oh, more reading material, if you so feel inclined:

No, usually shooting the attacker prevents shooting.

Reasoning is a subjective quantity that can change due to political climate.

So...you don't live in America. Awesome.

Sure, but if a person is going to the ER to have his face stitched up and his hand examined for fractures on a Friday or Saturday night, it may point to a violent disposition or a predisposition to make poor choices. I don't care much about cholesterol and heart disease has no bearing on firearm ownership.

Wildly inappropriate?

MP5s have lost favor in the police community because an AR15 does everything an MP5 does but better (I won't get into the fact that LEO can logistically support AR15s better than MP5's) for the points I outlined above. An MP5 is still a pistol caliber weapon and suffers the same downsides.

Licensing.

The problem with your idea is that firearms in this country ARE used for self defense. Or in the case of the mall shooting a week or two ago, deterrence (Not a single shot was fired by the armed citizen and presenting the weapon was all that was needed)

Employing a handgun on an aggressive attacker is much more difficult than you think.