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Third-party doctrine

A person holds a cellphone displaying a request for permission to track the phone's location | Envato

Fourth Amendment

A SCOTUS Case Exposes the Dangers of 2 Misguided Fourth Amendment Doctrines

"Geofence" searches illustrate the perilous combination of modern technology and deference to law enforcement.

Jacob Sullum | 4.29.2026 12:01 AM

ATNscope_1161x652_1161x653 | American Technology Network Corp.

Privacy

Did You Download an App that Connects to Your Rifle Scope? If So, the Justice Department Wants to Know Who You Are.

Feds go fishing for private data in order to track down illegal exporters.

Scott Shackford | 9.9.2019 2:15 PM

xanax-newscom | Godong/BSIP/Newscom

Privacy

New Hampshire Resists the DEA's Demands for Warrantless Access to Patients' Prescription Records

An ACLU brief bolsters the state's case, arguing that people reasonably expect information about the medications they take will be kept confidential.

Jacob Sullum | 6.3.2019 2:00 PM

Large image on homepages | Ben Garrison

Immigration

Is 'Civility' Possible, Let Alone Desirable, in Trump's America?: Podcast

Reason editors grapple with disassociation etiquette, family separation, third-party legal doctrine, health association plans, and the existential despair of Fozzie Bear

Matt Welch | 6.25.2018 3:50 PM

Large image on homepages | Sarawuth702/iStockphoto

Civil Liberties

Use a Cellphone, Void the Fourth Amendment?

Damon Root | 8.1.2017 12:00 PM

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