Hundreds of U.S. air marshals and federal Bureau of Prisons employees were exposed to dangerous levels of lead while pursuing required firearms proficiencies at gun ranges sanctioned by the federal government, according to an investigation by the Seattle Times.
After the paper reported that two Seattle-area gun ranges repeatedly violated lead-safety regulations while benefiting from federal contracts, the Transportation Security Administration (TSA) issued a mandate that at least some gun ranges that do business with the federal government prove that their facilities are not tainted with lead.