Nuclear Regulatory Commission still insists that US nuclear plants with same design as Japan's stricken Fukushima Daiichi facility are safe. But watchdog groups cite failed venting system, which led to hydrogen explosions.
Several polls show that Americans are once again wary of nuclear power. Before the Fukushima disaster, support for nuclear power had hit record highs in the US.
The Nuclear Regulatory Commission failed to resolve known safety problems, leading to 14 'near-misses' in US nuclear power plants in 2009 and 2010, according to a new report from a nuclear watchdog group.