On September 11, 2011 the hijacked planes that hit two World Trade center twin buildings, were supposed to be located by scatter jets. There was also a Doomsday plane that flew by the Nations Capital, that was in a no fly zone on that day.
COLLAPSE: How the Towers Fell (2002) :: full length documentary
Doomsday Plane - the Mystery 9/11 Plane
LETS ROLL - THE STORY OF FLIGHT 93 (FULL MOVIE)
9 The Secret History of 9 11 prepare to be shocked! 2006 - youtube.com
BEST 9 11 DOCUMENTARY EVER!(FULL MOVIE) (SD) - youtube.com
9/11: Day That Changed the World - youtube.com
9/11 Terrorist Attacks, Reason, Timing, Facts and Timeline
Motives for the September 11 attacks
9/11 13th Anniversary Commemoration 2014, The World Trade Center, Historical, Documentary, Tribute
World Trade Center 2001 (Part 6)