“It shows that the inertial reference systems that act as dead-reckoning backups in case of GPS failure are no backup at all in the face of GPS spoofing because

“It shows that the inertial reference systems that act as dead-reckoning backups in case of GPS failure are no backup at all in the face of GPS spoofing because the spoofed GPS receiver corrupts the IRS, which then dead reckons off the corrupted position” That's... scary