[Kinky]

Distract and discredit: Wild speculation distracts Americans from real issues of coverup and complicity in the 9/11 attacks and discredits all mention of conspiracy. [Source: Navy News Stand]

Evidently the author(s) believe there is some sort of coverup or conspiracy? Kooks in denial!

[Trimegistus]

There _was_ a conspiracy: a group of Islamist terrorists conspired to attack America, and (unfortunately) succeeded in killing thousands of people. Why the kooks have to find a _different_ conspiracy is a mystery to me.

[inquest]

Evidently the author(s) believe there is some sort of coverup or conspiracy?

I personally don't discount at all the notion that there was some cover-up of government incompetence surrounding 9/11 (I still can't get over Condoleeza Rice claiming that no one had anticipated an attack of this nature). But as for direct involvement in the attacks, I don't think there's any evidence of that.