Today marks the 25th anniversary of the September 11th, 2001, attacks in Manhattan. Mark opens the show by looking back at that tragic day, reflecting on how intense it was and sharing insights into the construction of the World Trade Center. Mark takes your calls! Mark interviews radio legend Scott Shannon. Scott recalls what it was like to be on the air on 9/11. Scott stayed on for over 10 hours as callers phoned in to share their own experiences from that unforgettable day.

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