9/11, that is. Do your kids know what happened? Have you let them see any of the footage when it's shown?
I've made a point of making sure all 3 of my kids know. They've seen the news clips, and I've explained it to them on various age-appropriate levels. I don't know why I feel so strongly that they understand it, maybe it's b/c it happened on my b-day, maybe b/c just 6 yrs earlier, dh and I were standing on the observation deck of the WTC. . .