David Friend, author of Watching the World Change: Stories Behind the Images of 9/11, came to Tufts to talk about his book and his perspectives on the World Trade Center tragedy of 2001. David Friend has exercised his creative energies in numerous capacities, including as executive producer of a documentary (9/11, aired on CBS), correspondent, editor, writer, and curator. Mr. Friend's work has ranged from covering conflicts in Afghanistan and Lebanon to creating an award-winning interactive online feature on "AIDS and Photography;" from interviewing US Presidents and a king of Saudi Arabia to exposing the "Deep Throat" story of the Watergate scandal.