The below is an excerpt from another conversation but it is plausible enough I wanted to share the theory with everyone...
Based on the videos we know that the event hit the east coast first, then moved west across the country, not at the speed of light, but awful friggin fast. This speaks specifically to an area of effect, or for loss of a better term, we will call it our fallout zone. To me this would mean that the body causing the event was traveling easterly to westerly, probably in a Molniya type orbit.
What is interesting about this specific orbital type is that any body which has a Molniya orbit of the Earth would pass through the Van Allen Belt.
The VA Belt is a HUGE source of radiation and, not suprisingly, when the US conducted the Starfish Prime test in 1962 a significant number of satelites were damaged or outright fried. Here is some light reading from the DoD for you
http://stinet.dtic.mil/cgi-bin/GetTR...c=GetTRDoc.pdf about the Starfish test.
Now what do you suppose would occur if one were to set off a 'directional' nuclear explosion, or series of explosions, inside the Van Allen Belt and pointed back at the surface of the earth.....like the kind generated by all those X-Ray lasers we have up in the Star Wars defense net right now?