I'm sick of all this "if we do this, then the terrorists have won" or "if we don't do this, then the terrorists have won". Sick of it, I say! Truth is, if we try to justify doing or not doing something, THEN the terrorists have won! Just do something based on your own judgment, whether or not you want to do it or not. If you don't want to dwell on what happened, fair enough. If you want to remember it, then that's great as well.
Terrorists schmerrorists, I say.