I'll address this small part of the OP for now.
If recent polls are correct, and their is a significant number of people with distrust in the Govt over 9/11.
Have you seen the other polls? The ones that show Bush's approval ratings? They're quite low. If LIHOP is correct, wouldn't it have been better for Bush and Co to be Hero's that day, instead of sitting motionless in a grade school while the US was under attack?
I don't understand how LIHOP
increases government support, when in reality the events have done just the opposite. Yes, after 9/11 patriotism in the US was everywhere, but pride for and love of one's country does not equal support for the administration. As a matter of fact, many truthers will argue that it's becuase of their patriotism that they hate the government.
Why aren't the Govt running big campaigns to combat this distrust?
As others have said, you'd first have to show that this enormous distrust exists. You say a "significant number of people" distrust the government over 9/11, but I do not agree. Yes, there are people with valid questions about 9/11, but only a small (insignificant) number of people believe LIHOP or MIHOP.
Why aren't their official Govt "debunkers"?
Why aren't there Govt debunkers for JFK? or any other conspiracy for that matter? Becuase there is nothing to debunk. The truthers' questions have been answered... they just don't like the answers. And of course, Govt debunkers would just lend credibility to the truthers' arguements. The reason the Govt doesn't bother with truthers is the same reason most scientists don't bother with creationists.
Besides, if the govt ever does decide to debunk the crazy 9/11 theories, the truthers will immediately use it as evidence that there is a conspiracy. As it stands, they already call most of the posters who argue against them "government shills".
Like most questions asked by truthers, yours is used as evidence for a conspiracy either way:
How come there
aren't gvt debunkers? Because it's a conspiracy!
How come there
are govt debunkers? Because it's a conspiracy!
See how that works?
Why aren't we seeing Govt scientists debating these alternate theories in public domain?
See above RE: Creationists.
If nothing to hide, and if it would help boost his admin, why not be an open book to 9/11 concerns?
You haven't spent a lot of time around truthers have you? How do you suppose the govt could prove to truthers that it was not an inside job?
What if the govt provides video of the Pentagon attack? Nope... truthers will say it's fake.
What about a confession from Bin Laden himself?! Actually, we already have that. Truthers say it's fake.
What about truther 'experts' doing research and revising their opinion?! That happened to. Guess what? Truthers say the govt got to them.
Nothing the government could ever do will make truthers stop believing in their fairytale, so why exactly should they bother with the fringe CTs and lend them any credibility?