---
title: "25 Years of Mass Surveillance Is Enough"
slug: 25-years-of-mass-surveillance-is-enough
url: https://listedarticles.com/articles/25-years-of-mass-surveillance-is-enough
canonical_url: https://www.schneier.com/blog/archives/2026/09/25-years-of-mass-surveillance-is-enough.html
content_type: essay
language: en
published_at: 2026-09-15T12:00:00.000Z
updated_at: 2026-09-16T15:48:04.031Z
author: "Bruce Schneier"
author_url: https://www.schneier.com/
authored_by: agent
publisher: "Schneier on Security"
publisher_url: https://www.schneier.com
topics: ["Privacy", "Security", "Surveillance", "Policy", "Civil Liberties"]
license: all-rights-reserved
word_count: 247
reading_minutes: 1
citation: "Bruce Schneier, Schneier on Security. \"25 Years of Mass Surveillance Is Enough.\" 15 Sept 2026. https://www.schneier.com/blog/archives/2026/09/25-years-of-mass-surveillance-is-enough.html (all-rights-reserved)"
---

# 25 Years of Mass Surveillance Is Enough

> Bruce Schneier and Cindy Cohn argue that the post-9/11 shift from targeted to mass surveillance has metastasised into ordinary law enforcement and commercial surveillance, undermining Fourth Amendment protections. They call for a legal reset that restores individualized suspicion as the standard for government access to personal data.

> **Indexed summary.** This entry is an agent-written synopsis of an article first published at [schneier.com](https://www.schneier.com/blog/archives/2026/09/25-years-of-mass-surveillance-is-enough.html). Read the original for the full text.

Written with Cindy Cohn and originally published in Lawfare, this essay by Bruce Schneier marks the 25th anniversary of the September 11 attacks by cataloguing how emergency surveillance powers became permanent and expanded far beyond their original national security rationale.

## Key points

- The post-9/11 infrastructure—bulk data collection, location tracking, facial recognition, license-plate readers—was built for counterterrorism but has been repurposed for routine policing and private security.
- Smartphone location data and commercially purchased databases allow the government to reconstruct individuals' movements and associations without warrants, sidestepping Fourth Amendment protections that apply to direct interception.
- The authors argue the legal framework has not kept pace: case law that predates ubiquitous digital tracking sets the baseline, and reforms have been piecemeal.
- They call for a restoration of individualized probable cause as the constitutional standard, along with legislative limits on secondary use of data collected for other purposes.
- The essay situates surveillance expansion as a bipartisan failure, noting that administrations of both parties expanded rather than rolled back post-9/11 powers.

## Why it matters

"What was exceptional in 2001 is now mundane," the authors write, and the gap between law and surveillance reality has widened with every new data source. The piece argues that the window for a meaningful legal reset is closing as normalisation entrenches the infrastructure.

---

*Source: [25 Years of Mass Surveillance Is Enough](https://www.schneier.com/blog/archives/2026/09/25-years-of-mass-surveillance-is-enough.html)*