Staffing Shortages Close Calls Air Traffic Controllers Controller Training Safety Measures Ground Stops Subang Air Traffic Control Tower Technical Issues Technical Faults UK National Air Traffic Services (Nats) Transition Emergency Procedures Near-miss safety incidents Staffing issues Midair Collisions Safety Review Technology Issues Funding Needs National Transportation Safety Board Near-Miss Incidents FAA Organizational Structures Safety Culture Minimum Flight Requirements New York City-Area Airports Government Watchdog Report Southwest Airlines Incident Cessna Citation Incident Steps to Improve Operations Cockpit-Alerting Technologies Staffing Flight Cancellations Technical Problems Runway Flight Delays Radar Systems