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Extras

Bill Weir on Migrant Caravans in Mexico
CNN Correspondent Bill Weir joins the program.
Bill Weir on Migrant Caravans in Mexico

Theoretical Physicist Brian Greene on the Origin of Life
Walter Isaacson sits down with theoretical physicist Brian Greene.
Theoretical Physicist Brian Greene on the Origin of Life

Jorge Castañeda Discusses Central American Asylum Seekers
Former Mexican Foreign Minister Jorge Castañeda joins the program.
Jorge Castañeda Discusses Central American Asylum Seekers

Stanley McChrystal on the United States' Longest War
Former Commander of Allied Troops in Afghanistan Stanley McChrystal joins the program.
Stanley McChrystal on the United States' Longest War
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