I don't think it is a question of who was responsible for 9/11.
More to the point, why has this Admin been complicit in so much unnecessary secrecy, since 9/11, which has enabled the more ridiculous conspiracy theories to be spawned and thrive.
Personally I have grave doubts that this US Admin has been open and entirely truthful regarding some elements re: 9/11, not because I am a conspiracy theorist, but due to several aspects that have never been explained in a satisfactory manner.
Any thinking person must surely feel similar doubts about some aspects.
Perhaps fresh minds can help here.
The main problem I had at the time, still have and which has never been answered by anyone at all in a reasonable and rational manner to my knowledge is the following;
The BBC and other sources have stated that of the men who were identified as the perps of the 9/11 hijackings, several have since been proven to be alive and kicking.
When the researcher for the Popular Mechanics debunking article and a while afterwards the book which was published was asked to explain this, he replied that it was actually untrue. That in fact the BBC made a 'mistake'.
When the researcher was asked how he knew this to be the case and this is on record, he replied that 'they' (not sure who the they, is that he actually refers to) found DNA that proved the terrorists were who the government and intelligence sources named, no doubt about it.
What I am still waiting to hear, is with what exactly did 'they' compare the DNA at the scene?
If the DNA of each hijacker was identified, from whom and where did 'they' source the control DNA with which to compare?
This is a crucial question that after 7 years is even more worthy of a reasonable explanation in my personal opinion.