Millisecond software glitch cripples UK air traffic, NATS reports

UK air traffic control body NATS says a software defect that affected data in a millisecond caused widespread travel chaos, with more than 2,000 flights canceled and hundreds of thousands affected. The outage disrupted major airports (Heathrow, Gatwick, Luton, Glasgow), required hours to restart and lift restrictions, and has sparked calls for compensation and a resilience plan as a Civil Aviation Authority review proceeds.