>cryptography

cryptography enables spies, terrorists, criminals, and dissidents to communicate over any network with absolute impunity. if it was feasible, every government in the world would have banned or "regulated" it, as some had attempted to. but in the end, they had conceded defeat, and the world had not ended.

>make every human need to question the reality of any electronic audio or video they encounter, no matter how realistic?

you left out "images", which we learned to question decades ago. likewise, audio and video could also be manipulated with readily available, completely unregulated tools, to produce quite believable results.