OK Truthers, what is your smoking gun?

i.e. what is the single piece of conclusive evidence that proves, beyond a reasonable doubt, that 9/11 was "LIHOP" or "MIHOP" or otherwise did not transpire as said by the "official narrative"?

There's got to be something us debunkers/skeptics are missing. So have at it!

via International Skeptics Forum http://ift.tt/1GulLi1