Earlier efforts to use gene therapy to treat a rare immune disorder in young children failed when some of the children got leukemia. Scientists say they think they may have figured it out, with eight children now living normal toddler lives.
The U.S. and Afghanistan have been at odds over a security agreement that allows U.S. troops to remain in the country past 2014. Hagel also met with leaders of Gulf nations to assure them the U.S. is not abandoning those ties in favor of a nuclear deal with Iran.
Every year, on the day after Thanksgiving, almost 100 volunteer decorators show up at the White House. They spend the next five days stringing garlands and hanging ornaments, making the White House sparkle for the holidays. NPR has a related tradition, and it's about to end.