and want proof rather than accusations.
Terry McDermott, who has written a great biography of the hijackers (Perfect Soldiers), wrote this recently:
Atta's academic, immigration, credit, transit and telephone records provide a fairly complete account from the time he left his native Egypt in autumn 1992 to his death. This includes the period during which Able Danger is said to have identified him as a terrorist in the United States. The story those records, and corroborating interviews, tell is that Atta was not in the United States and made almost no contact with the U.S. until June 2000.
In November 1999, Atta and three friends traveled from Germany — via Istanbul and Karachi — to Afghanistan, where they intended to receive military training before going to fight the infidels in Chechnya. They were, instead, recruited into Al Qaeda and assigned the Sept. 11 mission. Atta returned to Hamburg in late February, and the next month he made what is thought to be his first contact with someone in the United States. He e-mailed dozens of flight schools inquiring about commercial pilot training for "a small group of Arab men." He also e-mailed a friend from Egypt who was studying at a Florida university and asked about visa requirements. In May, he applied for a visa from the U.S. Embassy in Berlin. Six weeks later he landed in Newark, N.J...
Even if Able Danger somehow produced a name, "Mohamed Atta," that might not mean much. Variations of "Mohamed" are overwhelmingly the most common name in the Muslim world. It is James, John and Robert combined. Atta isn't Smith or Jones, but it isn't Einstein either. There are plenty of Mohamed Attas — and plenty of Mohamed el-Amirs too. The likelihood of mistaken identity is enormous.
cited here (original link dead):
http://www.warandpiece.com/blogdirs/002421.htmlthere's also the fact that Atta went by the name Mohamed El-Amir for most of his life, as noted by Eric Umansky (who has many Able Danger posts on his blog):
http://www.ericumansky.com/2005/08/attas_visa.htmlplus Weldon has previous with making stuff up:
http://www.fas.org/sgp/news/secrecy/2005/08/081605.html#4