Very cool SF. I have a letter from Elvis from Graceland (& a Christmas card) from way way back (early 60's maybe). ONLY, it was obviously a standard letter that I'm sure they made thousands of copies of. Still, I have it saved.
TIS
"Mankind must put an end to war before war puts an end to mankind. War will exist until that distant day when the conscientious objector enjoys the same reputation and prestige that the warrior does today." JFK