Shanghai’s biggest international airport momentarily descended into chaos Sunday night, after authorities ordered a mass testing drive in response to a small outbreak of Covid-19 linked to ...

There’s an old controversy over the word “momentarily” or, more precisely, over one of its most familiar usages. The word really means “for a moment,” but on airplanes, it’s used to ...

WASHINGTON — “We’ll be moving momentarily, train ahead of us.” When Metro riders hear that dreaded announcement, and there has not been a train breakdown or track problem, there is often a ...