FILE – In this May 20, 2020, file photo, residents cheer and hold thank you signs to greet employees of a Smithfield pork processing plant as they begin their shift in Sioux Falls, S.D. Federal regulators said Thursday, Sept. 10, 2020, they have cited Smithfield Foods for failing to protect employees from exposure to the coronavirus at the company’s Sioux Falls plant, an early hot spot for virus infections that hobbled American meatpacking plants. (AP Photo/Stephen Groves, File)