Shernice Mundell thought she'd be working for the federal government for years. The Air Force veteran and single mother of a teenage son left a job in the private sector to work at the Office of Personnel Management, essentially human resources for the federal government, in August and was promoted after just four months. As far as she knew, she was excelling and her job was secure. Then came Feb. 13. That afternoon, she was invited to a meeting on Microsoft Teams, where she and 74 other people