...and are testing them in the Nevada desert.
Nuclear Experiment Planned at Nevada Site
LAS VEGAS - Government scientists plan an underground nuclear experiment, short of a nuclear blast, at the Nevada Test Site on Tuesday. The experiment will involve detonating high explosives around plutonium in a steel sphere while X-rays, radar and lasers chart the behavior of the radioactive element.
Scientists from the Los Alamos National Laboratory in New Mexico will run the test in a tunnel nearly 1,000 feet below ground at the site about 80 miles northwest of Las Vegas.
The test dubbed "Armando" is the 21st subcritical experiment at the site. Federal officials say the experiments are essential to maintaining the safety and reliability of the U.S. nuclear arsenal.
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Plus am interesting comment from a linked site;
Nuclear Experiment Planned at Nevada Site
LAS VEGAS - Government scientists plan an underground nuclear experiment, short of a nuclear blast, at the Nevada Test Site on Tuesday. The experiment will involve detonating high explosives around plutonium in a steel sphere while X-rays, radar and lasers chart the behavior of the radioactive element.
Scientists from the Los Alamos National Laboratory in New Mexico will run the test in a tunnel nearly 1,000 feet below ground at the site about 80 miles northwest of Las Vegas.
The test dubbed "Armando" is the 21st subcritical experiment at the site. Federal officials say the experiments are essential to maintaining the safety and reliability of the U.S. nuclear arsenal.
MORE...
Plus am interesting comment from a linked site;
The remote site is surrounded by thousands of additional acres of land withdrawn from the public domain for use as a protected wildlife range and for a military gunnery range, creating an unpopulated land area comprising some 5,470 square miles.