WTC 7 exposed structure and debris pile:
The way WTC 7 was constructed, I don't see how it collapsed so quickly,or how even a neat, 20 stories tall, one or two windows wide, shallow verticle gouge out of the south face, could have caused or contributed to the failure pictured here:
<img src="http://911research.wtc7.net/wtc/evidence/photos/docs/b7_2.jpg"><img src="http://911research.wtc7.net/wtc/evidence/photos/docs/b7_3.jpg">
<img src="http://911research.wtc7.net/wtc/evidence/photos/docs/verizon/b7_debris1.jpg">
<img src="http://911research.wtc7.net/wtc/evidence/photos/docs/verizon/b7_debris4.jpg">
If you're considering that the verticle structural columns were subjected to demolition crew cutting torches before the photos were taken, I don't think that they were. A fire crew is still on the scene, and although that, in and of itself proves nothing, it contributes to my observation that the area below the coumns has not been cleared for access, there would be no rescue/recovery operation near there, it is early in the demolition removal operation, and working in that area, with hopes in the first two weeks of finding trapped victimes near WTC 1 & 2, it woild not have made sense to expend resources to cut and remove heavy steel, in that area.
WTC 7 seems to have been built of strong stuff that failed simultaneously, for as yet to be determined reasons.....