I think the real danger is that if the government starts regulating end-to-end encryption we're going to end up in a Kafka-esque situation like we have with rad

I think the real danger is that if the government starts regulating end-to-end encryption we're going to end up in a Kafka-esque situation like we have with radio encryption - i.e. the technology is freely available off the shelf, but any attempt to actually use it without the right license or on the wrong frequency, etc., can suddenly turn into a federal felony.