18 - 11AM: Dean of the Graduate School of Journalism at Columbia University; staff writer for The New Yorker; author of several books, including Directorate's: The C.I.A. and America's Secret Wars in Afghanistan and Pakistan

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Peter Tilden / 2/12/18 - 11AM: Dean of the Graduate School of Journalism at Columbia University; staff writer for The New Yorker; author of several books, including Directorate's: The C.I.A. and America's Secret Wars in Afghanistan and Pakistan

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