Unbiased demolition expert sees Building-7 for the first time...

Dutch demolition expert Danny Jowenko was shown the collapse of WTC 7 in an interview back in 2006.

He did not know what the interview was about. He was shown video footgae of the collapse on a computer, without being told when or where it occurred.

The interviewer then asked for his professional opinion of what might have cause the building's collapse. He was certain that it was a controlled demolition, carried out by a "team of experts". He even seemed impressed with the quality of their work.

When it was revealed to him that the collapse happened on 9/11, he was surprised and had to check if the person telling him this was sure of the date.

Watch his reaction in the 1 minute clip from 'Calling Out Bravo-7' -