In this case, it boils down to a simple matter of good manners. The original poster took it upon herself to begin a confrontation, and came off like a total ass, first by using leading questions, then by apparantly teeing off on the kids without being provoked.
So they gave historically ignorant replies. So what? Sounds like the pissant was looking for a fight to begin with.
She did not start the confrontation, the kid did. The kid has his freedom of speech, he used it, and she has the right to answer back. Her profanity is, IMO, appropriate to the emotions the kid did need to hear. We in the right, have been far too silent for too long, and if 9-11 has changed this then so be it. The 9-11 event should never have been necessary for motivation.