4th Amendment
176 Articles

The PCLOB Stubs Its Toe on Use of U.S. Person Queries with FISA Section 702
A critique of the PCLOB recommendation that Congress require FISC authorization when U.S. person query terms are used in the FISA Section 702 database.

Resolving Carpenter’s Third-Party Paradox (Part II – The Solution)
Part II of a series discussing the digital-privacy paradox emerging from a Fourth Amendment revolution in Carpenter v. United States.

The Just Security Podcast: A Fourth Amendment Privacy Paradox
The third-party paradox has massive implications for privacy rights and raises important questions about how to challenge the government’s request for information that might…

Resolving Carpenter’s Third-Party Paradox (Part I – The Paradox)
Part I of a series discussing the digital-privacy paradox emerging from a Fourth Amendment revolution in Carpenter v. United States.

The Government’s Section 702 Playbook Doesn’t Work Anymore
Imposing robust safeguards for searches of Americans' communications in the FISA Section 702 program should be an easy path to preserving the program's intelligence value when…

The Year of Section 702 Reform, Part III: Why Congress Should Not Exempt Warrantless “Foreign Intelligence” Queries
A cramped approach to protecting Americans’ privacy would be a mistake, both as a legal matter and a practical one.

A Close and Critical Look at the ‘Five Things’ the ACLU Says You Need to Know About ‘NSA Mass Surveillance’
The most compelling national security question this year is whether Congress will reauthorize Section 702 and, if so, what form that reauthorization will take.

The Year of Section 702 Reform, Part II: Closing the Gaps and Completing the Modernization of FISA
There are gaps in FISA's coverage that collect American communications outside of any statutory framework and beyond the reach of courts.

The Year of Section 702’s Reauthorization: A Reply on “Back Door” Searches
There are targeted, sensible reforms regarding use of Section 702-acquired information by the FBI for non-national security investigations that would avoid throwing the baby out…

The Year of Section 702 Reform, Part I: Backdoor Searches
Requiring a warrant for U.S. person queries honors the balance between security and liberty struck in the Fourth Amendment and ensures that Section 702 can’t be used to get around…

Democracy at Risk: Are The Florida Election Police Violating the Law?
This is an important test case for American democracy in the newfound battles over voter suppression."

With Roe v. Wade at Risk, Digital Surveillance Threatens Reproductive Freedom
If Roe is overturned, states will likely use sweeping digital surveillance tools to enforce abortion bans.