Mystery 9/11 aircraft was military 'doomsday plane'

rawstory.com — Shortly before 10 am on the morning of September 11, 2001, amid rumors of a fourth hijacked plane headed for Washington, DC, a mystery aircraft appeared in restricted airspace over the White House. There has never been an official explanation for this incident, which has provided abundant fuel for 9/11 conspiracy theories. Sep 13, 2007 View in Crawl 4