639 - people are working on the Fukushima issue - in fact, there has been enough clean-up so that 7,000 personnel are working at the site. There is much to be done, but you cannot move people who have invested money and time on their current projects to something they know nothing about. The Fukushima experts are the ones who can most effectively and rapidly deal with the issue - not someone employed in a job elsewhere to do something within a different field of expertise.
Yes, there are cancers in the immediate vicinity of Fukushima - but "all cancers aren’t the same, and according to his research, the type of cell mutations found in the children in Fukushima don’t usually lead to “shortened life spans.” The small nodules found on the subjects’ thyroid glands are cancerous but that doesn’t mean they’re fatal." There is no danger to the US from the Fukushima fallout.
Some countries have addressed the problem by shutting down nuclear altogether, such as Germany. Other people are researching an alternative to nuclear that is far less harmful, and actually uses spent fuel from standard nuclear. These are within the realm of their goals and their ability to finance. Moving hundreds of scientists to working on just one problem is impractical and certainly unfeasible wrt financing.
Leave everything else alone and quit cheating the system for grants from millionaires and NGOs. Have no idea what you are talking about. And, btw, millionaires can fund what they like - the Koch brothers have certainly done so, as has Bill Gates. If knowledge and science leads to breakthroughs thanks to investors, what is the harm, and this has been going on for a long time. The internet you are using is a result of government financing. Investor financing is responsible for a number of things that you probably use every day. Blue LEDs are thanks to research at UCSB that has had an enormously positive impact all over the world.