Only if you have a automatic weapons lisence. Actually, a more correct answer is, it depends on where you are. In the U.S. they are legal to own, in most states, if it was manufactured before May of 1986. You do not have to have an automatic weapons license, but you do have to pay a fee to register it with the ATF.
You can. It is not against the law to own fully automatic weapons provided you follow all the rules. 21, clean criminal record, money to buy, CLEO signature, etc..
Automatic weapons as we usually think of them are really semi-automatic. That is, you fire one bullet for each trigger pull, and the weapon charges itself with a new bullet automatically. These are not assault weapons, though most politicians think they are. Real automatic weapons will 'spray' out a stream of bullets as long as the trigger is kept pulled. These ARE considered assault weapons. They were outlawed largely because of their use by gangsters who had more firepower with them than the police did. Automatic weapons are pretty dangerous because of all the firepower they emit. The killings that you read about where "Assault" weapons have been used, have NOT used assault weapons, only semi-automatic weapons.
no
Yes
The accepted procedure in deploying the equipment.
Yes
Texas, maybe.
Either by gas or recoil or a combination
Automatic weapons are prohibited in every state. You can have a semi-automatic rifle though.
Because its fully automatic, and was not importable pre 1986 (when the assault weapons ban was introduced). Only fully automatic weapons produced pre 1986 and were already legally owned in the US are now legal in the US. Although it IS legal for Police Departments to own Glock 18's, if they have been trained by Glock. It is also legal to own (in certain states, with strict stipulations), a Glock 17 (or any other model besides the 18) with a fully automatic sear. Which is essentially a Glock 18. **I Am NOT A Lawyer***
Owning a fox in Louisiana is legal.