![John Sherman, a 60th Engineer Squadron firefighter, is hit by fire-retardant foam after it was “unintentionally released” in an aircraft hangar at Travis Air Force Base in California on Sept. 24, 2013.](https://archetype-air-force-times-prod.web.arc-cdn.net/resizer/v2/TK5KZB4VARG2FGNIOCXZCZB2QY.jpg?auth=369c6d3fcb08fd299e59d1bb1520075d180d27ebbfce47d200c65cec898d360f&width=4096&height=2734)
Study links ‘forever chemicals’ to testicular cancer in US troops
The military first documented health concerns surrounding chemicals known as PFAS decades ago yet has continued to use firefighting foam made with them.
By Hannah Norman and Patricia Kime, KFF Health News