Border agents can search cellphones without a warrant or reasonable suspicion

Original Article ↗ Hacker News Discussion ↗

U.S. border agents can now manually search travelers’ cellphones without a warrant, probable cause, or reasonable suspicion, under a legal “border search” exception to the Fourth Amendment. Commenters debate the constitutionality and scope of this power—especially its extension to a 100‑mile “border zone” covering most of the U.S. population—and whether digital devices should be treated like traditional luggage. Many describe defensive practices such as traveling with wiped or “burner” devices, while others highlight similar or even stricter regimes in countries like the UK and question the long‑term implications for privacy, tourism, and civil liberties.

Border search powers and the 100‑mile zone

  • Many note that “border search exceptions” extend to a 100‑mile zone from any border, covering ~2/3 of the US population.
  • Debate over what this actually allows: some say it’s misrepresented and only applies to actual crossings plus limited checkpoints, others fear it effectively guts the 4th Amendment for most residents.
  • Concern that a 100‑mile rule could be arbitrarily expanded (e.g., 200 miles, whole rivers counted as borders).

Digital device searches: scope and limits

  • The ruling is described as allowing suspicionless manual searches of phones at the border; it explicitly avoids deciding on forced unlocking or deep forensic extraction.
  • Some argue devices can’t be copied or kept without reasonable suspicion; others claim agents may seize and image devices anyway, with little recourse.
  • Discussion of tools like Cellebrite: some say modern encrypted phones with strong passwords are safe; others cite vendor claims that many recent iOS/Android devices can be accessed in AFU/BFU states.

Practical strategies and risks

  • Common advice: use a “travel phone” or wiped devices, restore data from the cloud after crossing.
  • Counter‑claims that wiped/basic phones are themselves considered suspicious, though concrete examples are disputed.
  • Hidden/decoy volumes are debated: some insist they’re undetectable and ideal; others point to SSD wear‑leveling and project maintainers saying it’s not reliably deniable.
  • Several note that organizations already require clean devices for travel, especially to high‑risk countries.

Citizens vs. non‑citizens and consequences

  • Consensus: US citizens cannot legally be denied entry, but can have devices seized and possibly be briefly detained.
  • Non‑citizens can be refused entry for almost any reason, including refusing device searches, and may be detained or banned from future entry.
  • A Supreme Court case (Egbert v. Boule) is cited to argue that citizens have almost no monetary remedy when border agents overstep, beyond suppression of evidence.

Constitutional and judicial debates

  • Strong disagreement over whether border exceptions are compatible with the plain text of the 4th Amendment.
  • Some argue the exception follows historical practice of inspecting goods at borders; others say digital “papers” are categorically different.
  • Broader criticism of US courts “torturing” the Constitution, overreliance on 200‑year‑old text, and legislative failure to update privacy protections.
  • Dispute over the proper role of judges: strict interpretation vs. evolving application and “inventing” rights/limits.

International context, tourism, and anecdotes

  • Comparisons to the UK, where border authorities can compel answers and device passwords, with no lawyer present.
  • Reports that some European employers mandate burners/clean devices for US trips; others say that’s not their experience.
  • Concerns that aggressive border practices deter tourism, though some note the US economy is not heavily tourism‑dependent.
  • One detailed story: a traveler in Canadian pre‑clearance for a US flight was flagged over powder (later a false positive) and old war‑related screenshots, then barred from the US for life, briefly jailed by Canadian police, and later told it was a false alarm—seen by many as evidence of “wrongthink” risk and disproportionate consequences.