“In the summer of 2001, the coordinator for the city of Mountain View, Calif.'s Web site noticed a suspicious pattern of intrusions. The FBI investigated and found similar "multiple casings of sites" in other cities throughout the U.S. The probes were seemingly emanating from the Middle East and South Asia, and the visitors were looking up information about the cities' utilities, government offices, and emergency systems. This information took on a new significance when U.S. intelligence officials examined computers seized from Al Qaeda operatives after the Sept. 11 attacks and discovered what appeared to be a broad pattern of surveillance of U.S. infrastructure.”
For story with links to supporting articles:

http://www.gabriellereillyweekly.com/full/islam.html

http://www.gabriellereillyweekly.com

Check out "The Model, her Shadow, the Payload, and the IMC: A grey propaganda operation on the Indymedia network" at: http://victoria.indymedia.org/features/media/