ST. LOUIS (AP) — The U.S. Office of Special Counsel says in a letter to President Joe Biden and members of Congress that employees at a federal office complex in St. Louis were exposed to “widespread, longstanding” contamination from asbestos, lead, mercury, arsenic and other toxic materials by the agency in charge of managing government workplaces. The St. Louis Post-Dispatch reports that the letter, issued Friday, also noted that children at an on-site day care facility were exposed. The letter says officials deliberately misled tenants about the health risks at the Goodfellow Federal Center in north St. Louis. GSA has said it plans to move out tenants by the end of 2022.