Rio Olympics pose security risks to travelers

Police officers held up a sign saying "Welcome to Hell" at the Rio airport last week, according to local and international news reports, and the region's acting governor warned of a total collapse in public security. More funding is on its way, but it might not be enough to make a difference in time for the Olympic games. Meanwhile, physical safety isn't the only thing that travelers need to worry about -- security experts warn that travelers need to be extremely careful when they access comput