PLUTONIUM - IS - FOR - EVER - POSSIBLE NANOTEC SOLUTION!!! ( I, Cringely)

Yes atleast 10000 years

In this nuclear accident the situation is complicated by an extra party — Tokyo Electric Power Company — with its corporate personality and internal agendas. TEPCO is embarrassed by this accident. Embarrassment, either corporate or personal, is a huge deal in Japan. It’s not like they can just give up their corporate face for a few weeks or months while necessary things get done. I saw a similar unwillingness to squarely face reality at General Public

Utilities back at Three Mile Island in 1979. In both corporate cultures there was too much emphasis on political damage control — emphasis that often comes at the expense of good engineering.

If a nuclear plant manager is worried too much about his job he isn’t worried enough about his reactor.

There are right now two plutonium remediation technologies on offer to the Japanese government and TEPCO that I know about — one from Russia and one from the USA. One approach uses nanotech and the other uses biotech but both are novel and unique. Both have been offered to the Japanese through government channels and in both cases the Japanese government or TEPCO have yet to respond.

[link to www.cringely.com]

They have to give it a go, if its not working no harm done
I know nothing about the tecnology proposed, but it sounds like a posability, nano tec and bio is not unheard of.