Why the air traffic control outage caused so much chaos

An air traffic control outage due to a "radar-related" problem caused chaos at airports in the UK and worldwide, grounding planes and leading to 150 flight cancellations and delays. The outage lasted for 20 minutes but had ongoing impacts. While NATS, the organization that manages the UK's airspace, quickly resolved the issue, airlines have criticized its performance, with some calling for the chief executive's resignation. Despite technical failures being termed "inevitable," the recovery was swift, and NATS's overall performance has been good over the years. Passengers have faced disruptions, emphasizing the crucial role of air traffic control systems in managing busy skies.