NYT: There is enough uranium available to fuel 10 times as many reactors as exist today, even if each of the new ones ran for 100 years, according to a new report from the Massachusetts Institute of Technology. The report said that uranium supplies would not impose constraints on new reactor construction quot;for much of this century at least.quot; But it did cast doubt on the wisdom of a different kind of construction that is now going on, of factories that can take the plutonium from spent fuel …