9/11 then and now: Do September 2001 attacks still shape our world?
What happened
Once in a generation, sometimes once in a lifetime, a singular event blindsides the entire planet. 25 years on, does the memory of the Nine-Eleven attacks against New York's Twin Towers, the Pentagon and in Pennsylvania fade into history or is it still as raw and vivid as on that sunny September morning?
Summary assembled by rule from the sources below