The reason why all this matters is that more than a few of the primary people involved in government at the time of the assassination are still active in our government today. It matters because while our government is still lying to the public, and doing it with frightening regularity, the media acts as if it doesn't, and so do the voters.

If an independent investigation could be reopened, it would heal a lot of wounds. Ballistic and forensic evidence, properly handled, could reveal a lot about what happened that day. An independent investigation would tell us who had access to the missing evidence, and we would then know what the trail of evidence was, where it ended, and who it ended with--all information that would reveal a lot to us about who was involved in the cover-up.

Don't confuse the celebrity worshipping factor with the very important political effects of the assassination. Confusing the two is what is keeping the government safe from our (the citizens) right to know what happened.