LinkLinks Washington Post: Low-flying helicopter spotted over D.C. area is mapping natural nuclear radiation By Editor On Oct 19, 2020 Last updated Oct 19, 2020 90 Share A helicopter flying low over the Washington area on Monday was measuring naturally occurring background radiation as part of security efforts for the Jan. 20 presidential inauguration, according to the U.S. Department of Energy’s National Nuclear Security Administration. 90 Share FacebookTwitterReddItWhatsAppEmailPrint
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