If this is an actual credible threat and if they entered in Aug only a few weeks ago, I kinda think maybe this 9/11 anniversary would be a little too soon for these operatives to set up all of their variables needed to carry out their objective. However a few months from now we have the date Nov 11, 2011 or 11/11/11 ...... they seem to love the number one in any combination.
Just sayin.
They seem to be binary simpletons.