(WGN) - For families of service members lost in war, years may pass, but painful questions linger. In the WGN-TV Backstory piece in the video player above, Anchor Larry Potash provides a short history of the M.I.A./P.O.W. movement through the viewpoint of a select few families who lost loved ones in Vietnam and WWII and their struggle to find answers. For many, time is running out to get closure after decades of loss. Potash talks to military families about how they've found strength through families and wider communities to keep up the search for loved ones lost. The special also delves into former Bears QB Jim McMahon's efforts on the subject, including his decision to give the cause a boost during Super Bowl XX. Watch the full show in the player above. ...read more read less