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Story summary
- The FAA ordered a ground stop at Newark, Philadelphia, and Teterboro airports after a radio equipment problem.
- Transportation Secretary Sean Duffy said an Amtrak crew accidentally cut a fiber line, causing the crash.
- A GAO report found the FAA lacks risk assessments and updated security documentation for spoofing and jamming.
- The Department of Transportation accepted the GAO’s nine recommendations, including formal risk assessments and continuous monitoring.