Briton

Almost half of Britons apparently believe in captive space aliens [and 38% think 9/11 was an inside job]

blah, blah, blah, then:

"And despite the horror of the 9/11 attacks, more than one in three (38 per cent) are sure the twin towers atrocity was part of a plot backed by the US government to create an excuse to invade Iraq and Afghanistan.

A third of respondents pointed to a "lack of debris" outside the Pentagon crash site as proof that all is not as it seems."

http://news.scotsman.com/latestnews/Almost-half-of-Britons-apparently.4342157.jp

I couldn't find the actual poll; please post as a blog entry if you do, or just put a link in the comments