National POW/MIA Recognition Day
This day was established by an Act of Congress, by the passage of Section 1082 of the 1998 Defense Authorization Act. It is one of six days that the POW/MIA Flag can be flown.
The POW/MIA flag was first recognized by Public Law 101-355 in 1990.
Observance / Display 
The POW/MIA flag should fly below, and not be larger than the United States flag. It is generally flown immediately below or adjacent to the United States flag as second in order of precedence.
See also 
- Department of Veterans Affairs http://www.va.gov/
- Veterans of Foreign Wars http://www.vfw.org
- Blog by Widow who travels to Vietnam after 40 years and finds her MIA husband's jet crash site in Que Son Mtns