They need to do something. The tanks at Hanford are being held together with spit, baling wire and duct tape, while taxpayer money is being thrown in to the VIT Plant backhole.
So, I'm told, are they at Savannah River. The real danger is theft. The waste, I'm assured, is not too dangerous on its own, but gathered into a "dirty bomb" by an enemy agent could spread contamination for miles.