Take a look at this. Some of the Green Berets from ODA-574 might get the Silver Stars their Captain (now Lieutenant Colonel) Jason Amerine put them in for eleven years ago as reported in my book The Only Thing Worth Dying For. See this article reported by Joe Gould for the Army Times:
http://www.armytimes.com/news/2012/10/army-silver-star-discrepancy-100312/
If it is about honoring the service of an individual—living or dead—I say stop at nothing. I can think of no better allocation of manpower, money, and time. Investigate it, learn from it, set it straight. Sooner is better than later, but later is better than never.