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There are approximately 4000 people employed as a Nuclear Power Reactor Operators.
How Many Nuclear Weapons Does the U.S. Have? As of July 8, the United States has 6,800 warheads, according to data from Hans Kristensen and Robert Norris at the Federation of American scientists. 2,800 of them are retired, 4,000 are stockpiled, and 1,800 are deployed. The total number of U.S. warheads is second only to Russia, which currently has 7,000 of them. Aside from North Korea, the other nuclear powers have between 80 and 300 warheads each, and 1,135 in total. As of July, North Korea was thought to have the material for a maximum of 20 warheads. It was previously thought that North Korea lacked the technical sophistication to make nuclear warheads small enough to be delivered via long-range missile.