The United States has made few preparations for such attacks on its homeland and infrastructure, despite mishaps at home that have disrupted air traffic control systems and regular press reports of American weapons systems degraded by jamming and spoofing overseas.
“There is every reason to believe China’s BeiDou global navigation satellite system has the ability to imitate American GPS signals and those of Europe’s Galileo,” said Professor Todd Humphreys of the University of Texas Radionavigation Lab...