ZOOM GLITCHES, BRIEFLY GRINDING US SCHOOLS TO A HALT

Teachers and parents got a brief glimpse of a new kind of pandemic-era nightmare Monday when Zoom — the video-conferencing service that powers everything from distance learning to business meetings to casual, socially distant get-togethers — abruptly went dead.

For roughly two-and-a-half hours Monday morning, many users were unable to load the Zoom website; others could neither host nor join scheduled meetings. Zoom fixed the problem by 11:30 a.m. ET, the company reported on its status page.