On February 2, 1976, General Electric nuclear engineers Gregory C. Minor, Richard B. Hubbard, and Dale G. Bridenbaugh resigned from responsible positions in the company’s nuclear division and publicly disclosed safety problems they believed threatened U.S. nuclear plants. Their statements drew journalists, energized the anti-nuclear movement, and precipitated congressional hearings. The three later formed MHB Technical Associates, advising state and federal agencies and foreign governments on nuclear safety; the firm also served as a technical adviser for the film The China Syndrome.
The engineers returned to public attention after the March 2011 Tōhoku earthquake and tsunami triggered explosions and containment failures at Japan’s Fukushima Daiichi plant. Bridenbaugh criticized GE’s Mark 1 design, used in five of Fukushima’s six reactors, saying it did not adequately account for dynamic loads during a loss-of-coolant accident and remained more susceptible to a loss of containment despite retrofit efforts. The source documents the whistleblowing, congressional response, and later design criticism, but does not establish a specific enforcement penalty or financial settlement against GE.
