More than opening doors. He was a living example of human potential for all races from humble beginnings. multi-talented singer, dancer, musician, actor, impressionist. electricity in a bottle.
Ok, WHERE was he born? WHO were his parents? WHO was his first wife? HOW did he become famous? For what? WHERE IS THE REST OF THIS MANS LIFE? What difficulties did he face getting work in the industry as a young black man?
No, Sammy was not worried about embarassing JFK. The opposite was true per Sammy's autobiography. It was JFK who used him to get the black vote, and then tossed him aside.