Nicola Hahn writes: While top secret NSA documents continue to trickle into the public sphere, tech industry leaders have endeavored to reassure anxious users by extolling the benefits of strong encryption. Rising demand among users for better privacy protection signifies a growth market for the titans of Silicon Valley -- this results in a tendency to frame the issue of cybersecurity in terms of the latest mobile device. Yet whistleblowers from our intelligence services offer dire warnings that contrast sharply with feel good corporate talking points. Edward Snowden, for example, noted that under mass surveillance we're essentially "tagged animals" who pay for our own tags. There's an argument to be made that the vast majority of network-connected gadgets enable monitoring far more than they protect individual liberty. In some instances, the most secure option is to opt out.