http://news.independent.co.uk/world/americas/story.jsp?story=389569 The Federal Bureau of Investigation said he posed an "imminent threat to US citizens and interests", but did not specify the threat.
Bush administration officials said they believed Mr Shukirjumah had taken flight training at a school in Norman, Oklahoma, although the school said it had no record of a student named as Mr Shukirjumah, or any of the half-dozen aliases the FBI said he had used