The AP has a long and detailed accounting here of its investigation of radioactive contamination of groundwater from leaks at 75 percent of the US nuclear power sites where 104 aging reactors routinely get re-licensed by an industry-compliant US Nuclear Regulatory Commission, despite mounting evidence of problems associated with deteriorating underground infrastructure.
Perhaps most troubling is the fact that much of what is rusting underground would be depended upon to bring critical cooling water to the plants in an emergency, but they don't routinely test it or inspect it.
Meanwhile, 110,000 tons of cooling water contaminated with radioactivity has piled up at Fukushima in Japan and threatens to go to sea unless operators can get a de-contamination facility working properly.
Neither this nor our own problems with nuclear power have done much to move our feckless leaders in either party, while Barack Obama enjoys a very cozy relationship with GE head Jeff Immelt, whose company built many of the units in question, including the ones which have melted down in Japan.
Too busy golfing.