Other than security contractors (Blackwater/XE, Triple Canopy, Aegis Defence Services, et. al), no. Most of the civilian contractor positions there specifically prohibit carrying arms.
No
Anywhere in the US
Some do, some don't.
No. About half the households in US have guns. Not every gun owner in the US carries a gun. The exact stats are uncertain, but simple logic would demonstrate that it would be less than 50% of Americans that carry guns.
Yes. They would not be very effective against criminals with guns with just a badge.
Yes. It may require a license or permit, but yes.
There is a lot of disapproval towards gun ownership in the US.
It has a police force- the US Postal Inspection Service. They carry guns and require training and practice.
(in the US) Law Enforcement officers have always been armed.
Depends on where you are located, and a license to do WHAT with guns? we get questions from several nations and all 50 US states, and laws vary place to place. There are permits to BUY a gun, to possess a gun, to carry a gun, to carry a gun concealed, to collect guns, to sell guns, and to make guns. If you can be more specific, so can we. Sorry-
The United States constitution Gives the right of US citizens to keep and bear arms.
The best answer will be " US in Afghanistan"