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Coloradans Remember 9/11: Why Do We Mark The Anniversaries Of Tragedies?

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The waterfalls are tested as work continues on the National September 11 Memorial at the World Trade Center site, Friday, July 15, 2011 in New York. The memorial will be dedicated in a ceremony on September 11, 2011, the tenth anniversary of the terrorist attacks. One World Trade Center, center, rises above the site. (AP Photo/Mark Lennihan) | AP File

Why do we mark the anniversaries of tragedies? Two experts on this topic join us. Stewart Hoover directs CU Boulder’s Center for Media, Religion and Culture. He wrote about memorializing 9/11 in a book called "Religion in the Media Age." Also with us: Barbie Zelizer. She’s a professor of communication at the University of Pennsylvania. She studies times of crisis and how we remember those times. Her newest book is “About to Die: How News Images Move the Public.” Hoover and Zelizer speak to Ryan Warner.

Read the whole story at Colorado Public Radio