Started reading Pulitzer Prize book "The Looming Tower: Al Qaeda and the Road to 9/11" today by Lawrence Wright - about decades of events leading up to 9/11.
This is a potent case study and reminder of the human factors/profiling to be assessed in most fully understanding "competition" AND the challenges sometimes of getting anyone to believe you and take action.
The original FBI discoverer of the plot had pieced together the shape of what was coming five years before 9/11.
Suggest you read a couple of chapters (http://tinyurl.com/bh6y4r). Used on Amazon about $7.50.