Obama talks ransoms, failed operation to rescue Kayla Mueller

In an interview Tuesday, President Obama said that telling the families of hostages that the United States won't pay ransom is "as tough as anything I do." Obama also said he was "heartbroken" when he heard that 26-year-old hostage Kayla Mueller had died after being held by ISIS for more than a year. "She was an outstanding young woman and a great spirit -- I think that spirit will live on," he told BuzzFeed News. "The more people learn about her, the more they appreciate what she stood for -- a...