Bad things happen when regulators do not enforce nuclear power plant regulations.  This week's podcast discusses secret, closed-door meetings between top regulators in Japan, as well as the failure of regulation much closer to home: in Michigan. Arnie Gundersen is joined by Kevin Kamps, a radioactive waste specialist with Beyond Nuclear.  Finally, surprising radioactive discoveries at Japan’s Fukushima Daiichi site call into question the key assumptions regulators use when trying to decide just how well the public is protected from nuclear power plant accidents.