8/11
Seriously though, I dont think its quite time to be making 9/11 jokes yet. Its still fairly recent.
I do believe though that after awhile people wont care about 911 that much.
I mean look at pirates. Pirates were the epitome of evil back in the day, now we dressmup like them on Halloween and make kids shows and sing about how fun it is to be a pirate. I wonder if there will be kids shows about being national socialists and taliban and how fun it is in about 200 years from now