Seems to me a lot of people are still concerned about the Holocaust, which happened much more than 35 years ago.
(I don't know all the details, but, basically....towards the end of the war, American soldiers (hundreds or thousands) were killed by American fire when Japanese ships were bombed, and nobody talks about them too much. There was a thread or a mention on a thread some time ago.)
The Holocaust and Pearl Harbor weren't accidents. The Liberty incident was. Having trouble with that distinction?
Are you so thoroughly confused? Of course you should be concerned with Perl Harbor. Of course you should be concerned with the Holocause (in't it telling that you removed yourself from that list?).
This is because those were big events and, as such, they teach us complex and lasting lessons. They are manifestations of evil in human nature, so they also serve us as reminders of that evil and help us focus on good in us.
In contrast, the case of USS Liberty, as tragic as it was and as it continues to pain me, was the case of friendly fire. We had almost 10% of such casualties in Viet Nam, in Desert Stornm, and just a few months ago slaughtered (accidentally) a bunch of Canadians in Afghanistan. This is the category of events to which Liberty incident belongs.
Now, why is it that all those cases of friendly fire are crossed out as resolved, except for this one? You've got it: this time friendly fire was committed by the Jooooos. And it was not an accident at all: remember, they also killed another Jew, Joshua -- I mean, Jesus?
Bingo, you uncovered the truth.