There have been nearly 35 years for either government to punish the guilty parties, or at least to conduct an honest investigation. That has not been done. That makes it relevant today, in my book.
You can bet that if it hasn't been done by now, it will never be done.
Like I said, Israel screwed up, big time. I think it was intentional, and there should have been consequences. The Liberty should not have been attacked even if Israel thought it was sending info to Egypt. (Remember, LBJ was not trustworthy. You can bet we would not know if LBJ had been covertly backing Egypt.)
But none of that changes the facts today. Israel is fighting the same barbarians we are. I'll pick Israel over Arafat every time.