colonel paris davis in march. we honor a true hero of our nation. reporter: it right did a nearly 6-decade old wrong for one of the first black officers in the elite green berets. since the white house ceremony, what has changed? everything. reporter: americans have taken the 84-year-old davis into their hearts. i couldn t go anywhere where someone didn t recognize me, come over, and say thanks for your service. reporter: they have sent handmade cards. most of them are we love you, congratulations. reporter: he has even thrown out the first pitch at nationals park. [cheers and applause] but some still ask why his medal of honor paperwork or rescue two injured soldiers in vietnam vanished twice at the height of the civil rights movement. people were really interested in finding out what the hell happened, and i would always say, that was then, this is now.