"What have we not learned? And why not"?

Facing yet another tragically violent assault on the innocent, I turned off the news and listened to former Archbishop of Canterbury, Rowan Williams speak about the twenty-five years since 9/11. That morning, he was at Trinity Church at "ground zero". He helped to evacuate the preschoolers in the building to safety.

https://www.youtube.com/live/zfrG926pXJI?si=VeW8ZbU05ZzBHiqh&t=1250