- The humiliation of the attacks had altered Americans' self-identification as a "chosen" nation
- Interfaith forays were more acceptable, with Muslims making inroads to mainstream culture and cooperating with Christian groups more often.
- Atheism had become a forceful, militant idea. It came out of the closet.
- I would add a fourth: the unholy marriage between Christian fundamentalism and Zionism that lured the nation into two world wars--and nearly a third in Iran, had not cooler heads prevailed.
For me, 9/11 was a faith touchstone. It didn't seem like such a big deal at the time. I was a practicing Christian then; I am a Christian today. But looking back, I think it raised some questions that I had no hope of finding answers to at the time.