People work at the Rivian Automotive electric vehicle factory in Normal, Illinois, April 11, 2022.Kamil Krzaczynski | ReutersWorker productivity fell to start 2022 at its fastest pace in nearly 75 years while labor costs soared as the U.S. struggled with surging Covid cases, the Bureau of Labor Statistics reported Thursday.Nonfarm productivity, a measure of output against hours worked, declined 7.5% from...