individuals are identified? >> families are given the choice to either interthe remains back at the cemetery where they were interred as an unknown or bring them back home. >> when you find and piece together all of this, what does it mean for the families? >> these families go through life with a void of heart and mind. they know their loved one died in combat but not having that certainty of those remains leaves an uncertainty that exacerbates their grieving. oftentimes it's what we call generational grieving. it's passed down generation to generation. so you may be talking to family members that never met the service member but they know everything about him or her from the standpoint that it's almost as if you are speaking to his mother. >> bret: so it means a lot. >> absolutely. >> bret: the defense prisoner of war missing in action accounting agency currently has a team in normandy, france, searching for three missing airmen who were thought to have been shot down on d-day. their hoping to discover personal artifacts in the soil there where the plane was likely