Is the truth about 911 the biggest open secret ever?

Assalamualaikum

I must admit, it seems as if the truth of 9/11 hasn’t quite been revealed to us especially after having seen the following:

http://www.letsroll911.org

http://www.911truth.org/

http://www.twf.org/News/News911.html

http://www.twf.org

http://whatreallyhappened.com/WRHARTICLES/inside.html

http://www.911sharethetruth.com/

http://911truthseekers.org/

http://loosechange911.com/finalcut/

http://www.answering-christianity.com/911_is_the_biggest_lie.htm

And Allah knows best
Salaam