US FAA suspends all departing flights nationwide after ATC comms failure

The FAA has ordered a nationwide ground stop on all departing flights due to serious air traffic control communication problems, marking only the second such disruption since 9/11. The scope and cause of the communications failure remain unclear, but the measure halts all outbound traffic while airborne flights continue to land. This is a critical infrastructure event with immediate operational and economic impact, and potential systemic implications for aviation safety.

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