Twenty years after 9/11, what have we learned about collective trauma? With Roxane Cohen Silver, PhD

This week marks 20 years since the September 11, 2001, terrorist attacks on the World Trade Center and the Pentagon. Researchers call this kind of shared disaster a “collective trauma.” Roxane Cohen Silver, PhD, of the University of California Irvine, who studies collective trauma and led a multi-year study on the mental and physical health effects of 9/11, discusses that research and how what we learned in the aftermath of 9/11 can inform our response to the COVID-19 pandemic, hurricanes, wildfires and the other large-scale disasters.

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