The U.S. conducts some of its most sensitive nuclear weapons research in a laboratory deep underground in Nevada. NPR was recently given a tour. National Nuclear Security Administration/Nevada National Security Site
National Nuclear Security Administration/Nevada National Security Site
FRENCHMAN FLAT, Nev. — In the middle of a dry lakebed northwest of Las Vegas sits a lone section of a bridge, its steel girders bent like spaghetti. Nearby are other oddities — a massive bank vault with no bank for miles; the entrance of an underground parking garage with no lower levels; and domes of rebar and concrete that have been
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