first new clear weapon made is 1996
NO! Nuclear weapons don't make and detonate themselves
It's not so much that they didn't agree. It's more that they both were working to make nuclear weapons and they were both trying to become world powers through the use of nuclear weapons.
Actually this is false most of the Cold War era nuclear weapons have been destroyed.At the peak of the Cold War the U.S. had about 10,000 strategic and 20,000 tactical nuclear weapons and the USSR had about 10,000 strategic and 30,000 tactical nuclear weapons.Following the signing of START both sides agreed to destroy all tactical nuclear weapons and reduce strategic nuclear weapons slowly over a period of time.At this time both the U.S. and Russia have about 3,500 strategic nuclear weapons each and no tactical nuclear weapons (although some people say that Russia secretly maintains about 1,000 tactical nuclear weapons).So, from a peak of about 70,000 nuclear weapons during the Cold War to about 7,000 nuclear weapons now, only about 10% of the weapons then available still remain ready for use.
Do the Russians have nuclear weapons?
There is no specific name for people who create nuclear weapons.
No.
make sure nuclear weapons did not proliferate to nations w/o nuclear weapons
Not being able to see into the future, there is a high likelihood that Russia will use nuclear weapons against the US and/or Western Europe. Most other countries that have nuclear weapons don't have the quantity to attempt an attack on the US. Russia is one country that DOES have sufficient quantity to make such an attempt. It doesn't mean they will.
The new country that want to make nuclear weapons. And how to consult with they own weapons
NO.
The US no longer makes nuclear weapons, it only refurbishes existing ones that are wearing out.
Afghanistan has not argued that it wants nuclear weapons.