Given the extremely unlikely coincidence that one of the main players occupied WTC1 at the exact point of impact and also had an office in the top floor of the impact at WTC2, the planes become optional since it is no longer a requirement and it could be an inside job with explosion since they had full access to WTC1 and could have worked their way down from WTC2 and maybe had access to Fuji bank as well who was the main occupant at WTC2's point of impact.
If it was an inside job, the planes could have been added as part of the overall plan of deceipt and would have increased the likelyhood of installing a massive trauma in the minds of people which was one of the major objectives and they already had a team of Arab pilots working on their al-Cokeda team.
Let me stress that the planes/missiles are optional. They could have fitted some sort of "plane magnet" in WTC1 and WTC2 as well, thus ensuring the exact point of impact, however no planes would have been the easiest plan as far as success rate goes and there is photographic evidence to suggest that the planes have been added to the pictures electronically and there are plenty of people here who follow the no planes option as a result.
The Pentagon footage is very unclear and doesn't show any plane or missile which is another clue.
A fourth clue is that there was a plume of smoke at the Eisenhower Building and there was also massive inside trading on KLM who didn't participate. Maybe the Eisenhower building was part of the overall operation, however it failed and was forgotten about.
Attacks on U.S. Change Life at NIH
By Rich McManus
Photos by Rich McManus, Bill Branson, Lew Bass
On the Front Page...
The transition from peacetime's reliable routine to wartime anxiety took place in only minutes as NIH employees came to work on an otherwise spectacular late summer morning Sept. 11 and discovered by 9:45 — via office televisions, radio, the web, phone calls and hallway conversations — that terrorism on an almost unimaginable scale was taking place in New York City and in the heart of Washington, D.C. The workday froze as workers tuned in to the news — the World Trade Center towers in flames, and
smoke rising from behind the Old Executive Office building near the White House.
And some other clippings about the Old Executive Office:
http://www.democraticunderground.com/discuss/duboard.php?az=view_all&address=125x59600