Author's note --

Aboard the International Space Station ; September 10th ; Tuesday begins ; Checking in ; 8:00 a.m. New York City ; The hijackings ; Inside air traffic control ; The first plane ; The second hijacking ; The military gears up ; The second plane ; Live, on air ; At Emma Booker Elementary School, Sarasota, Florida ; First reactions in D.C. ; American Airlines flight 77 ; On Capitol Hill ; Flight 93 in peril ; The World Trade Center evacuation ; Jumping ; The FAA makes history ; The Trade Center rescue continues ; The first collapse ; Inside the cloud ; Inside the PEOC ; The military responds ; The fourth crash ; Fear at the Pentagon ; The first casualty ; Around the towers ; After the collapse ; The rescue at Shanksville ; at school in Arlington, Virginia ; Aboard Air Force One, somewhere over the Gulf of Mexico ; Among those who knew ; Escaping the Pentagon ; In between collapses ; Trapped in the ruins ; After the collapse ; At the waterfront ; Midmorning at the Pentagon ; Midmorning at the Capitol ; With the Secretary of Defense ; At Barksdale Air Force Base ; Midday in New York City ; Midday in Washington ; Airborne, somewhere over the Plains ; Afternoon in Shanksville ; At Mount Weather ; At Ground Zero ; At the hospitals ; The 9/11 generation ; At Offutt Air Force Base ; Afternoon in America ; Searching ; 9/11 at Sea ; Afternoon at the Pentagon ; Airborne. en route to Andrews Air Force Base ; Evening in Washington ; In the Oval Office ; The evening of 9/11 ; The day ends ; Epilogue.