I apparently double-posted my comment, and deleted the duplicate, your parent, before your post was committed. Sorry about that. I also modified the other version, which, in some sort of karmic reaction, is now dead. Let me
1. Repost the modified dead parent:
> Probably because they're using Bayesian filters on various security fronts: internal threat analysis, the great firewall, whatever side projects some bureaucrat is using to pad his income.
>edit: This is a problem with classification/censorship schemes: the censors/classifiers are all stove-piped, so their decisions come with a high degree of variability. The censor may well have been unaware that this is a whole field of work, or, is aware, but isn't responsible for the censoring decisions about all other related titles.
2. point to Feynman's accounts of censorship at Los Alamos as just how dense censors are: http://goo.gl/nfxqp
Ultimately, I think you're right, this doesn't make sense, except in some colloquial circumstance that is already water under the bridge for the actors.