The way I figure it. If you are in a non government building less than 20 stories you are not a target anyway.

Large buildings in major cities are the target as well as gov instalations, nuclear facilities and a large crowd complex's .

If your low building is attacked and you survive the impact you have a pretty good chace of getting out anyway ie: Pentagon

Its the tall buildings that your screwed.

Sorry climbers.
I be damed if I am waiting around trying to figure out knots, homemade harnesses and tie off points when I am already out a window floating down in seconds.

Military pilots are not issued ropes for a reason.

No matter how you cut it chutes are faster and a more convenient way of getting on the ground from great heights.

Or else they should rename it the 82 rapelling division.

Did anyone actually watch those video's?

Mike