etc. (Too many variations on this to go into now. Suffice it to say that outlawing the sending of bits that they can't "understand" is too hard to enforce, even with foreseseable trends.)
Which reminds me.. I've recently started taking a class for the "American Cultures" requirement here at UC Berkleey, about the "Languages of America." In any case, I've been reading numerous articles about cases in which people were *penalized* (mostly in school) for speaking to their peers in their own native language as opposed to English, as mandated by law. People have said, "Outlawing strong crypto is like telling you tha you have to speak in a language they can understand." Don't be so surprised-- it's been done before. (Not to as an extreme degree as we're thinking about, but it *has* been done.)