Acting Secretary of the Navy Hung Cao examines potential evidence while wet-screening as U.S. Army Sgt. 1st Class Luis Rivera, Defense POW/MIA Accounting Agency Technical Services and part of DPAA Joint Field Activity Recovery Team 1, provides instruction on screening operations, June 23, 2026. Material from excavated units is transferred to screening stations where U.S. personnel and local workers search for aircraft wreckage, life support material and possible remains. The Acting Secretary of the Navy recently visited a Defense POW/MIA Accounting Agency excavation site in Vietnam. (U.S. Marine Corps photo by Lance Cpl. Chloe Zimmerer)