Look how polite everyone was back in Olden Tymes! Also, I'm sure I've said this before, but I was a voracious reader of comic books as a lad, and I learned a ton of words from them - I'd go to the dictionary all the time as a ten year old. And so I say, parents! If your kid is reading comic books, be of good cheer, for they are reading. And reading is fundamental.
Also, just as a taste of how crazy we as a country got after 9/11, here's a panel showing Dr. Doom's response:
Sure, he's tried to take over the world multiple times and killed lots of innocents himself, but America got attacked that day! Even Super Villains cried.