Several important branches of research in the United States rely on isotopes radioactive materials that are in short supply. The Energy Department considers them strategically important. To boost U.S. isotope production, DoE will make $16 million worth of grants to advance R&D for domestic isotope production. For an explanation, Federal Drive with Tom Temin\xa0spoke with the director of Energy's Office of Science Chris Fall.\nLearn more about your ad choices. Visit megaphone.fm/adchoices