For some of us, September 11th, 2001 still rings clear in our minds, even 20 years after the attacks. But newer generations have little to no memory of that tragic day — either having been too young to remember, or not yet born. Under The Radar is marking the upcoming 20th anniversary of 9/11 by reflecting on how Gen-Zers recognize an event that they learn about in history books. How does generational trauma affect those who didn’t even live through the event?


Garrett Graff, journalist and historian, whose latest book “The Only Plane in the Sky,” is the first comprehensive oral history of September 11th. Graff also serves as the director of the Aspen Institute’s cybersecurity and technology program.

Sam Sommers, experimental social psychologist, author, and professor at Tufts University.

Dana Rose Garfin, trauma scholar and assistant professor at the University of California, Irvine.