No, there is an international agreement on banning testing, which the US observes
no tests are currently done
I think they are still testing
Yes
There have been many nuclear explosion in the US in places like, Nevada and New Mexico. In anger against the US no. Japan still remains the only country in the world to be bomb in anger with nuclear weapons.
They say it is getting better and may be okay with in the next two weeks and they still are trying to push ocean water on the nuclear rods. (hope this helped)
as of 1992 there is no testing of nuclear explosives in the US. that is now only done by computer simulation on very expensive supercomputers. the nonexplosive parts of nuclear warheads do still undergo both lab tests and test missile launches.
It is indeed still happening, in many parts of the world.
The United Kingdom is a signatory to the Comprehensive Test Ban Treaty with their last test in 1991 For note, the final European nuclear test was by the French in 1996.
The US tested nuclear devices in the Trinity test site in NM, Bikini atoll in the Marshal islands, Eniwetok atoll in the Marshal islands, underwater offshore Mexico in international waters south of San Diego CA, the Nevada test site north of Las Vegas NV, in space, and for project Plowshare (peaceful uses of nuclear explosives) in about half a dozen other states.The USSR tested nuclear devices at 2 or 3 sites in Siberia and its largest fusion bomb tests were on the arctic island of Novaya Zemlya.The UK tested nuclear devices in Australia.France tested early nuclear devices in the Sahara desert while it still had colonies there, since then I'm not sure.
Nevada used to have fairly lenient laws regarding testing of automatic weapons. I think you can still find controlled ranges where you can test-fire full-auto.
No
YES