I would reiterate that people reading this thread will benefit from viewing the 2 1/2 video which I posted in comment #23 - doing so would answer most of the questions which have been asked.
Also, the following 4 minute video provides a clear example of just one of the physical anomalies which manifested at the WTC on 9/11.
Also, the following 4 minute video provides a clear example of just one of the physical anomalies which manifested at the WTC on 9/11.