National Public Radio: The Obama administration is promoting nuclear power, but at the same time it has put an end to plans to bury nuclear waste in Yucca Mountain, Nev. Now, a blue-ribbon committee is pondering what to do with the waste. One option under consideration is a process that would dramatically reduce its radioactive lifetime. Less than 1 percent of spent reactor fuel is made up of the nasty radioactive elements that last hundreds of thousands of years. And Sherrell Greene at the …