It would seem that this has many of the answers to the questions posed in this thread.
http://www.modelaircraft.org/files/IntheAir_TFRs.pdf
I wonder if the AMA ever got a reply to this one...
http://www.modelaircraft.org/files/N...R-20100914.pdf
The effect on a large model aviation event would be profound by a TFR. Imagine if it canceled a national or world championship? Especially considering the fact that such an activity poses NO threat to the VIP's in question. It is truly a paranoid, over reach, by a power hungry gov.