<Citing terrorism risks and highly visible targets, which seem to be thought sufficient excuse for everything else, would at least go over better.>
I doubt the IOC wants to bring up terrorism and Greece's ability to defend same.
The common sense for this "competition" is protecting yourself as best as possible. If having beds that fit and private bathrooms is considered to much comfort by some, well to each their own I guess. Other NBA players from other countries are opting out as well. The whole process should be true non-pro's as far as I'm concerned. When you have pros like Barkley "representing" you, who wants these guys there anyway?