Blueprints for terror

They're studying our weaknesses.

What is clear from the find, investigators say, is that Al Qaeda continues to study ways to hit U.S. corporate interests with the goal of hurting the American economy - a goal urged often by terror mastermind Osama Bin Laden in his past anti-U.S. screeds.

Nothing has been ignored, with details - as meticulous as the type of uniforms worn by building guards and whether they carry guns - carefully noted, senior intelligence officials said.

In their zeal to bring down buildings, they've factored in belowground parking lot architecture and even noted the degree of a garage entrance incline.

The intelligence officials said some of the surveillance pre-dates the Sept. 11, 2001, attacks that took down the twin towers and damaged the Pentagon.

There must be terrorist cells in this country that are providing this level of detailed information. I hope the FBI is focusing on the fifth column here.

Al Qaeda thugs had bldg. notes