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The head of North American Aerospace Defense Command (NORAD) said the Chinese high-altitude surveillance balloon that passed across the U.S., and similar balloon incidents that went undetected in recent years, have highlighted a “domain awareness gap.” Air Force Gen. Glen VanHerck, commander of NORAD and U.S. Northern Command, was asked during a press briefing on Monday about reports that at least three such balloons flew into U.S. airspace during the Trump administration without being detected, with the incidents being discovered…
