Tell us what you think happened, and maybe someone will have a go. Were the Twin Towers demolished, and, if so, how was evidence of the demolition apparatus concealed? At a very minimum, the 1000+ FBI and Customs and Excise agents who fingertip-searched all the debris at Fresh Kills have to be in on it, as do a significant proportion of the 11,000+ first responders and cleanup workers at Ground Zero. How many people were needed for installation? We'll need an idea of the amount of materiel installed in the towers and WTC7, then we could estimate how many people it would take to install it. Were unauthorised modifications made to the airliners? Then we have to include maintenance staff, procurement staff, staff responsible for scheduling airliner flight diagrams, and senior management staff at both American Airlines and United Airlines. Was there a NORAD stand-down? Then we have to include a significant number of USAF officers at various levels. Were the hijackers real? What happened to the airliner passengers? Who made the airfone calls? More people are needed to manage all this. What about after-the-fact coverups? How many disinformation agents are operating on this forum? Add them (us?) to the total. And, of course, everyone who worked on the FEMA and NIST investigations. Oh, and everyone who worked for the 9/11 Commission. And al-Qaeda, of course, who've never come forward and said "Hey, there's something funny about all this..."
If you're claiming that some undue influence was exerted over al-Qaeda to attck in a particular way and at a particular time, then your conspiracy might be small enough to cover up. If you're claiming controlled demolition, then that alone means that many thousands of people must have been directly complicit. It's almost inconceivable that nothing concrete would have emerged yet.
So, pick a horse and back it. Take a stand, and say what you think happened. Then maybe we can have a conversation.
Dave