Airman 1st Class Matthew Scherbel, left, an aircrew

Airman 1st Class Matthew Scherbel, left, an aircrew flight equipment specialist with the Utah Air National Guard's 151st Operations Group, demonstrates the anti-flash capabilities of some Polarized Lead Lanthanum Zirconate Titanate (PLZT) goggles to Brig. Gen. Dallen Atack, Assistant Adjutant General for the Utah National Guard, during Exercise Global Thunder at Roland R. Wright Air National Guard Base in Salt Lake City on Nov. 3, 2017. PLZT goggles were designed in the 1970s to provide protection from temporary flashblindness and permanent retinal burns caused by the brilliant flash of nuclear explosions. (U.S. Air National Guard photo by Tech. Sgt. Amber Monio)