Russian investigators are still trying to determine what brought down a Russian airliner over Egypt's Sinai peninsula this past weekend. All 224 people on board were killed, most of them Russians on their way back from the Egyptian resort of Sharm el-Sheikh. We also hear how popular Sharm el-Sheikh is as a destination for Russian tourists, and ask if Egypt's tourism industry can recover from the latest in a series of security-related incidents that put into question the area's general safety. Plus, the International Olympic Committee has announced that refugee athletes will be able to compete under the Olympic flag at the Rio Games next year.