Word is that Budweiser only aired the ad once because they didn't want to profit from the tragedy of 9/11. But it lives on - and probably will eternally - online.
Prayers and thoughts for the victims and their families. I know I'll never forget them and watching the towers come down. Truly evil and tragic.
Updated 12:36pm: The New York Times on the other hand, took the low road commemorating the occasion, reporting that: 18 years have passed since airplanes took aim and brought down the World Trade Center. Yeah. "Airplanes" took aim. Luckily, the internet rode to the rescue, tearing the Times a new one so effectively that they deleted the original wording and at least mentioned that the planes were actually commandeered by terrorists and flown into the buildings in the update. Fuckers. Makes me wish I had a subscription to the NYT so I could call and cancel, and tell them why. Seriously, if you don't want to report the news, why report at all? Just fold the damn thing. Fuckers.