Why did the planes the struck the WTC have to fire incendiary/high-explosive missiles before they struck?
This is an important question and key to understanding the whole WTC plot.
Planes that hit buildings do not always result in tremendous fires and explosions. When a plane hit the Pirelli Tower in Milano shortly after 9/11 there was very little damage to the tower. This was also the case when a 10-ton U.S. Army B-25 bomber hit the Empire State Building in 1945 (see below).
The WTC plot required massive explosions to accompany the crash of the planes in order to provide the logical pretext for the planned demolition which followed.
The explosions that occurred when planes said to be UAL 175 and AA 11 hit the twin towers were primarily caused by the missiles that they fired immediately before impacting the towers. The explosions were also required to destroy all the evidence of what it was that hit the towers.
The plotters could not allow any debris from the planes to survive the crash and collapse scenario they had planned. The collapse scenario was crucial to the plot and without a massive explosion there would be nothing that would explain what caused the towers to collapse.
The Plane That Crashed Into the Empire State Building
On the foggy morning of Saturday, July 28, 1945, Lt. Colonel William Smith was piloting a U.S. Army B-25 bomber through New York City.
Confronted with dense fog, Smith dropped the bomber low to regain visibility, where he found himself in the middle of Manhattan, surrounded by skyscrapers. At first, the bomber was headed directly for the New York Central Building but at the last minute, Smith was able to bank west and miss it. Unfortunately, this put him in line for another skyscraper. Smith managed to miss several skyscrapers until he was headed for the Empire State Building. At the last minute, Smith tried to get the bomber to climb and twist away, but it was too late.
At 9:49 a.m., the ten-ton, B-25 bomber smashed into the north side of the Empire State Building. The majority of the plane hit the 79th floor, creating a hole in the building eighteen feet wide and twenty feet high. The plane's high-octane fuel exploded, hurtling flames down the side of the building and inside through hallways and stairwells all the way down to the 75th floor.
The plane exploded within the building.
One of the engines and part of the landing gear hurtled across the 79th floor, through wall partitions and two fire walls, and out the south wall's windows to fall onto a twelve-story building across 33rd Street.
The other engine flew into an elevator shaft and landed on an elevator car. The car began to plummet, slowed somewhat by emergency safety devices. Miraculously, when help arrived at the remains of the elevator car in the basement, the two women inside the car were still alive.
Some debris from the crash fell to the streets below, sending pedestrians scurrying for cover, but most fell onto the buildings setbacks at the fifth floor. Still, a bulk of the wreckage remained stuck in the side of the building. After the flames were extinguished and the remains of the victims removed, the rest of the wreckage was removed through the building.
The plane crash killed 14 people (11 office workers and the three crewmen) plus injured 26 others. Though the integrity of the Empire State Building was not affected, the cost of the damage done by the crash was $1 million.
Source: http://history1900s.about.com/library/misc/blempirecrash.htm
