Separate polling from Gallup finds about 3 in 10 U.S. adults say they permanently changed the way they live their lives because of the attacks.

Twenty-five years after the 9/11 attacks, their impact continues to resonate differently. Personal histories and political actions shape individual understandings of the event. …

Many things have changed in the world of public opinion since the Sept. 11, 2001, terrorist attacks in New York City.