Fact Check: John Wellinghoff, former chair of the Federal Energy Regulatory Commission, warned that a coordinate...

Claim: John Wellinghoff, former chair of the Federal Energy Regulatory Commission, warned that a coordinated attack on nine critical substations could black out the entire United States.

Verdict: Unverified (50% confidence)

Explanation: Multiple sources report that John Wellinghoff, former chair of the Federal Energy Regulatory Commission, warned about the vulnerability of the U.S. power grid to a coordinated attack on nine critical substations. According to Yahoo News, Wellinghoff's analysis suggested that such an attack could potentially lead to a nationwide blackout. Utility Dive mentions that disabling nine key substations might result in a coast-to-coast blackout lasting up to 18 months. The New York Post quotes Wellinghof...