Boing Boing fails utterly to understand the importance of symbolism in maintaining public awareness and support of the war on Islamic totalitarianism. The State of Oklahoma obviously understands its value, and is issuing a license plate reminding everyone that, yes, 9/11 really did happen and, yes, there's still some paying back to be done.
And, by the way, Boing Boing, Osama bin Ladin is really pretty irrelevant in the whole scheme of things. Yes, it would be nice to find him and hang him by the neck, but other than a symbol, he's pretty meaningless. It's Iran, Syria, and Saudia Arabia that are the real problems.