Anderson Cooper is doing a story on this on CNN right now.

EDIT: Ok the basic "the sky is falling" crap. The SOP is a handbook for terrorism and other such drivel.

The most damning thing in it is the inability of the x-ray to discover wire smaller than 24 gauge. Let's all pretend that the terrorist and the governments that back them don't have access to the specs of a common x-ray machine.

Handbook for terrorist my left foot.