Defense POW/MIA Office [www.dtic.mil/dpmo]
They are in the process of looking for the remains of missing servicemen - from Vietnam, Korea, and WWII. If you are a family member whose loved one's remains are still missing, you can contact your service casualty office and ask them for a status on the search for missing servicemen.

Department of the Army
Total Army Personnel Command
TAPC-PER
2461 Eisenhower Avenue
Alexandria, VA 22331
(800) 892-2490
https://www.perscomonline.army.mil/tagd/cmaoc/cmaoc.htm

Headquarters US Marine Corps
Manpower and Reserve Affairs
Personal and Family Readiness Division
3280 Russell Road
Quantico, VA 22134
(800)847-1597

Department of the Navy
Navy Personnel Command
Casualty Assistance and Retired Activities Branch
POW/MIA Section
5720 Integrity Drive
Millington, TN 38055
(800) 443-9298
http://www.persnet.navy.mil/pers62/pow-mia/62p.htm