 Some trails are expected to close, but detour signs will be up for hikers and bikers to follow. A massive travel alert is unfolding right now at airports in Colorado and around the globe. The FAA has grounded flights from Delta, United and American Airlines because of communications issues. This comes after a Microsoft outage left frontier passengers stranded overnight. The carrier is based in Denver, where incoming and departing flights were canceled. The airline lifted its ground stop just before nine o'clock. Anyone