Machine guns are not controlled. You simply have it wrong. There are some silly laws that idiots like you think provide control but in reality anybody that wants one can will get one outside the law.
That is like saying drugs are control. Yea, there are laws against illegal drugs but that doesn't stop druggies from using, does it?
Anybody that wants a full auto for crime like the drug cartel or gangs do not buy a Class III weapons.
Only the law abiding citizens that were never going to use the gun in a crime in the first place.
The stupid ass NFA law is only a burden law abiding citizen.
If I wanted to use a full auto in a crime I would simply modify a semi auto or buy a full auto on the black market. There are plenty of them available and the price is cheaper than a Class III thanks to a stupid Democrat that passed a bill limiting the Class III registry.
Almost anybody that knows anything about firearms can modify a semi auto to shoot full auto in just a few minutes.
The NFA law is worthless as a crime deterrent.
The only reason full auto weapons are not used in crimes very much is because they are not the weapon of choice for most criminals. Crooks mostly prefer small concealable handguns.
The NFA laws have nothing to do with it.
However....Mexico....a country of strict gun control...far stricter than our gun control...is awash in fully automatic weapons...why...the drug cartels want them.........and outside of the fully automatic weapons obama sold to the drug cartels in the Fast and Furious scandal....it simply shows that if criminals and terrorists want fully automatic weapons, they will get them....no matter what the law says....
Dittos France....the 3 terrorists.....1 was a convicted criminal, 2 were on a government terrorist watch list....France has absolute gun control on fully automatic weapons and "high capacity" magazines, as well as rocket propelled grenades and hand grenades.....these 3 terrorists got all these weapon in France..........with all their laws...showing again...to the tune of 12 murdered people and 11 wounded, that when criminals and terrorists want guns...they get guns...and when the society is under gun control....the mass shootings are worse because no one can stop them....and in gun control countries like France....even the police require special units armed with guns....which take even longer to get to the gun free killing zone.....