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Published on Feb 18, 2013
Former Babcock-Hitachi engineer and member of the Japanese Parliament committee investigating TEPCO, Mitsuhiko Tanaka, details a flaw in the manufacture of the pressure vessel for Fukushima Daiichi reactor 4. This flaw was covered up despite compromising the safety of the reactor. Though not the cause of the explosion, it was one of many problems at the plant not properly investigated or adequately repaired. Learn more at www.greenpeace.org