We didn't have a proper investgation, and independent investigation. .
Not true. We did have a proper investigation. The funding for this was $11 million, and that doesn't include the expenses incurred by witness, etc. It was bi-partisan, with five Republicans and five Democrats. There was almost zero dissent from anyone in authority on the final 10 selected for the commission. It was selected by the White House (and administration) and the Congress. Both parties had tremendous input on the selections.
There was resistance to compliance with certain requests of the Commission on both sides. The White House resisted turning over certain information and providing certain personnel for testimony because of security reasons. The past administration official called to testify we less than cooperative also, with one going so far as to remove and destroy documents from the National Archive.
Much of the information withheld will probably come out in time. And history will have to be the judge on whether it was indeed appropriate to withhold it. Information that was purposely destroyed, we will never know. Regardless, much of it was water under the bridge at that point.
More time has passed, and we can have investigations until eternity passes and there will be people who are never satisfied with the findings. You will never find a point in time where everyone will have a collective sigh and say, "There! I'm confident with the accuracy and completeness of the investigation and it's results."
It just ain't gonna happen! We-The-People need to be vigilant and educated. Unfortunately, when more people are interested in what's happening with Paris Hilton than with the G-8 summit, or the Immigration bill, or who their senators are and what their voting records are, it just ain't gonna happen, either!
Until another 9/11 happens... but then the screaming and finger-pointing will start all over. People need to learn the truth, but also question the source of the information and the motives behind it.