i think i have a plausible answer to WTC 7. when i seen WTC 1, 2, and 7 fall they looked like CDs ( controlled demolitions) i reviewed several videos about CDs and came to the conclusion that 1 and 2 was not a CD but i could not resolve 7. 7 was indeed a CD. heres why: WTC 7 was a part of our national securoty apparatus and housed many things that was "top secret" 7 was probably rigged for a CD as soon as it became part of our national security. the government probably destroyed 7 after 1 and 2 and the pentagon was attacked to protect what was inside it. silverstien saig "pull it" and they did. the above fits all of the evidence.