Looks like he'll be having to confront another question about 911: Press for Truth, please vote if you haven’t already though;

Will You Watch 9/11 Press For Truth?
http://www.webcameron.org.uk/blogs/2177-Will-You-Watch-911-Press-For-Truth

Official Inquiries, 7-7, 9-11
http://www.webcameron.org.uk/blogs/2175-Official-Inquiries-77-911

http://www.webcameron.org.uk/ask-david/