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What brought all US air traffic to a standstill? | BBC News

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The US Transportation Secretary now says Friday's hours-long nationwide ground stop across the US was caused by an issue following a copper wire upgrade. The knock-on effect has reached around the world, with disruption within the US expected for days. What do we know about US air traffic control systems? And how have passengers reacted to Friday's travel chaos? 00:00 Intro 01:08 The role of 'old' copper wire 02:11 How long will effects last? 04:06 How old is US ATC tech? 05:33 The passenger experience 06:43 Is it safe to fly in the US? 07:48 What's the global impact? 09:08 Can you get…

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What brought all US air traffic to a standstill? | BBC News

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