This is fairly telling. Your default position is "9/11 was a government conspiracy". All it would take to back that up is a few scientists taking that same position. But there are no such scientists. So you demand evidence that none of them think 9/11 was a government conspiracy. The fact that none have felt the need to state that allows you to spring back to your default position.Show me these testimonies of hundreds of thousands of engineers
I believe the Earth is flat.
No astronomers, geologists or phycisists agree with you.
Show me the testimony saying they don't agree with me.