This is not a very comforting new. It appears that one of the ceramic material used for storing nuclear wastes http://www.nature.com/news/2007/070108/full/070108-6.html" than first thought. The damage done by the emitted radiation, especially from alpha and its collision byproducts, are damaging the material faster. I've always believed that this storage solution should only be a stop-gap measure while we continue to find better ways to deal with this. Until they consider reprocessing and using breeder reactors, we may not have any good solution to this problem until a completely different technology to generate power arrives. Zz. Edit: Nature's website is VERY flaky this morning. If you can't get the link, try again later.