Nikki Haley casts some doubt on U.S. athletes at 2018 PyeongChang Olympics
• www.nbcnews.com, by Erik Ortiz and Ali VitaliNikki Haley, America's ambassador to the United Nations, suggested that the United States' participation in February's Winter Olympics in South Korea remains up in the air, while the White House said Thursday that "no official decision has been made"