BornN2BS wrote:
[...]

IMO, it is quite possible that weakening of the infrastructure created
by the impacts, in conjunction with the heat generated by the fires,
was sufficient enough to cause structural failures on the affected
floors of the WTC towers. But, for both towers to completely collapse
as a result of damage so high up on the structures did not obey the
laws of physics.

While the engineers who actually understand the subject
know different.

> In addition, there were numerous reports of at least

one loud explosion near ground level before the first tower collapsed.

Check out an actual recording from the scene:

    http://www.amazon.com/gp/product/B00006B1HI/002-5255706-9720008

There are loud bangs near ground level that people could easily
mistake for explosions. The documentary crew is taping when the
South Tower starts to collapse, and the audio proves there was no
major explosion.

I was watching along on TV. The CNN news anchors were verbally startled
by an explosion that rocked the WTC area just before the first tower
fell. They emphatically confirmed this on live TV with a reporter close
to ground zero. As the massive cloud of dust engulfed lower Manhatten,
the  explosion was likewise shrouded in a cloud of mystery. The same
cloud hung over the Pentagon attack when vital accounting records were
destroyed by a low flying jet that punched a relatively small hole in a
freshly reinforced section of concrete, while hardly damaging the lawn.

Why the transcripts of various 9/11 broadcasts does not reflect the
entire dialogue is beyond me.

The mystery is not beyond all of us: the transcripts and recordings
prove you are wrong. What office do you think has the power to
retroactively change every news report? Did they also sneak into
every home that has a VCR, inspect all the tapes and alter the ones
that recorded the news coverage?

I can say, without a doubt, that the
official record was altered.

But it's not one official record. Your fantasy requires many
independent records to be individually altered.