Rasmus Fleischer has an article on Cato's website on the increasing push to outlaw technology for the sake of protecting copyrights.
People with some programming skills, however, won’t need to do much more than combining a few readily available and otherwise perfectly legal code libraries to compile their own streamripping tool, one that would circumvent the PERFORM Act. For regulations like these to be effective, it is necessary also to censor the sharing of skills that potentially can be useful for coding illegal software. The circle of prohibition grows still larger: Acoustic fingerprinting technologies, which have nothing copyright-infringing to them, but which can be used for the same feared identification of individual tracks, must probably also be restricted.
This domino effect captures the essence of copyright maximalism: Every broken regulation brings a cry for at least one new regulation even more sweepingly worded than the last. Copyright law in the 21st century tends to be less concerned about concrete cases of infringement, and more about criminalizing entire technologies because of their potential uses.
The thinking behind campaigns to outlaw technologies that might infringe copyrights is basically the same as the thinking behind gun control: If something can be used for a bad purpose, it is bad and must be stopped by the force of law. The legitimate uses are dismissed as a mere excuse, and those who exercise those uses are demonized as "hackers" and "gun nuts." Guilt by technology also lies behind the movement to mandate net neutrality. Differential pricing by protocol might be used to establish a monopoly, therefore it must be banned.
But technologies aren't good or evil in themselves; only people's actions are. Attempts to outlaw them stop the good uses far more than they stop the evil ones, since professional criminals by definition don't pay much attention to the law. People will find ways to circumvent the laws; governments and law enforcement agencies will fight back with increasingly broad prohibitions, pulling more legitimate uses into the forbidden zone. Honest people find they must break the law, and the government becomes their enemy.