the OP asks if this is worthy of a Great debate
The answer is NO, because of one basic fact that everyone ignores:
It was a one-time incident that has had absolutely no long-term effect on anything.
Like the JFK assasination, we will never know all the details, what we do know is often contradictory, and we will never convince the conspiracy-theory supporters.
But one thing is for sure,of both JKF and the USS Liberty:
whatever happened then has never happened again.
In the immediate aftermath, it was critically important to know if JKF was killed by an organized group of plotters, because the world would need to know if that group would continue to kill again.But now, 40 years later, we know that there is no such danger. It is no longer important–it is merely a fascinating question of an unsolved curiosity.
The same is true of the USS Liberty. In 1967 it would have been critical to know if the Israeli airforce would continue to attack other US ships. But 40 years later we know that there is no such danger.
So, like an unsolved murder in a local police archive–it is fascinating, but ultimately irrelevant.
(And yes, I know that good men died, and their families want to know why. But good men die in all wars. The question today, 40 years later is whether it is important–ie. is it likely that more Americans will die in similar circumstances. And the answer is absolutely no.That is why I say it is irrelevant as a Great Debate. )–but still an interesting mystery.