I tested the best power banks, from big units that can keep laptops running for hours to ones that can survive being in water.

No sane pilot would ever turn those switches off in flight,” said U.S. aviation safety expert John Nance to Reuters, a feeling now reverberating through regulatory agencies and engineering offices ...

Why did you cut off?” one of the pilots asked, as the cockpit voice recorder picked up the bewilderment that would come to characterize the worst air tragedy in a decade. The initial probe of Air ...