Wall Street Journal: General Electric, Union Pacific and other large U.S. employers are imposing COVID-19 vaccine mandates for their workers to comply with a Dec. 8 deadline set by the Biden administration for companies that are federal contractors. Boeing, IBM and Raytheon Technologies are other federal contractors that have already announced vaccine mandates for their U.S. staff. Together with GE and Union Pacific, these companies collectively employ more than 300,000 U.S. workers.