Not surprisingly, Discovery Channel announced this morning it will roll out its documentary from the Naudet brothers, in which they interviewed every living White House Chiefs of Staff, on Sept. 11. The two hour special will air for one hour that night and one hour the next night, at 9 PM ET/PT. Gedeon and Jules Naudet, you’ll recall, are the young documentary filmmakers who happened to be at the right/wrong place at just the right/wrong time when Jules accompanied members of the Engine 7, Ladder 1 firehouse in Lower Manhattan to the World Trade Center on Sept. 11, 2001 and shot footage of American Airlines Flight 11 hitting the north tower of the center and the complex’s collapse. (He and Gedeon were working on a docu about the firehouse at the time.) That footage became the 2002 documentary 9/11 which was aired to acclaim by CBS.This time, working with NBCUniversal’s Peacock Productions, the Naudet brothers have interviewed all 20 living White House Chiefs of Staff, and a couple presidents. The CoS’s share previously untold stories, spanning nine administrations and 50 years. The list includes former U.S. presidents Jimmy Carter and George H.W. Bush and Chiefs of Staff that include Howard Baker, Jr., James A. Baker III, Joshua Bolten, Erskine Bowles, Andrew Card, Dick Cheney, William M. Daley, Kenneth Duberstein, Rahm Emanuel, Jim Jones, Jacob Lew, Denis McDonough, Thomas Mack McLarty, Leon Panetta, John Podesta, Donald Rumsfeld, Samuel K. Skinner, John H. Sununu, Jack Watson, Marvin Watson, and Dick Cheney — who says “The White House Chief of Staff’s job has more authority and more power than the Vice President.”