Surveillance creep is especially disconcerting because technological advancements that automate monitoring and analysis are poised to radically enhance surveillance capabilities.

Not all of the crimes committed today can be pinned on the president. But the trespassing itself, breaking into the Capitol, is exactly what he called for.

Surveillance vendors are quick to insist on expensive, high-tech “solutions” that aren’t always compatible with privacy or freedom—and often don’t solve the problems we’re facing.

We’ve all been inundated with noxious disinformation, and it’s easy to get desensitized to lies about our election. But it’s different when those lies are delivered in court.

By definition, contact tracers have to ask people sometimes intimate and difficult questions. What if that information can somehow be used against them?

A traveler surveillance system in Hawaii is bringing the potential civil-liberties pitfalls of disease detective work into clearer—and more disturbing—focus.

We all face the risk that surveillance will turn state borders into 21st-century Iron Curtains, raising constitutional conundrums that would have been unthinkable just days ago.