if there was 10 million volenteers what could they do? Clean up and discard to somewhere else.
It would be a big undertaking. I would suggest pack it in rockets and send to the sun.
Now it's too early anyhow for clean-up operations. The disaster is worse than Chernobyl. The workers now from what I understand are only sent to pump nitrogen into the containment. Maybe there is more. But cooling the melted fuel is the first step! This requires rotating crews who reach their limit in a few minutes and then they are gone. This will go on for 2 years approximately, providing another big quake doesn't collapse the fuel pool, of which the whole plant will be abandoned and NE Japan evacuated.
Media isn't reporting it because it's really beyond the highest level 7. Experts call Fukashima's multiple meltdowns level 8. Higher level for multiple meltdowns.