It is strange that the capt of the Japanese destroyer (I wouldn’t have remembered the ship’s name) says he didn’t see the PT-109. I have seen an interview filmed quite a few years ago in which he describes clearly that the PT-109 was rammed deliberately.
In 1974 we were living in Tulsa and I met one of the Captains in Kennedy’s squadron. I asked him about the incident and he said it was considered the absolute worst thing that could happen to a PT boat to be rammed. He also said Kennedy was well liked by all of them.
I think it is pretty much known that Arthur Schlesinger was the real author of “Profiles”.
The Profiles in Courage thing has always set off my BS detector. It's like a guy comes in off the street and gets named the starting quarterback for the Super Bowl and wins, having never played a game before and never playing again. The rumors I'd heard were that Theodore Sorenson, his primary speech writer, wrote most of it.