US transport secretary says copper wiring replacement work caused nationwide flight ground stop
What happened
According to a BBC live report, the US transport secretary has said that work to replace old copper wiring caused a nationwide flight ground stop in the United States. The claim comes from the secretary, as reported by the BBC.
When it started
The date and time of the ground stop are not given in the information available. The BBC coverage is a live page that is updated as the story develops.
How it spread
According to the headline, the transport secretary attributed the stop to the copper wiring replacement work. How that work led to the halt has not been confirmed in the material provided.
Why it matters
A nationwide ground stop halts flights across the country, so the cause matters for travellers and the aviation system. The extent of the disruption, any response, and any further investigation are not covered in the material provided.