Look at the black and yellow symbol on the right. Is it a fan? A propeller? No. It's a trefoil, the international sign used to warn people away from potentially deadly sources of radiation. If you didn't recognize the degree of danger that is supposed to be conveyed by the three-bladed symbol, which represents radiation emitting from an atom, you're not alone. Over the last two decades, at least 20 people have died and more than 400 have been injured after accidentally exposing themselves to radioactive sources, such as radiography units dumped in scrap heaps. Experts believe that the final toll...
Nuclear Deterrence
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