Why did Atta have to check two of his bags ?
Eric Umansky states the problem this way : " In fact , the two - Atta theory only leaves one major issue unexplained : What about the three other 9/11 hijackers that Able Danger purportedly fingered?Broeckers / Hauss described in their last German book the existence of two Attas , two Jarrahs , two Hanjours and al - Shehhis .