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Jeff Larson

Jeff Larson

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Jeff Larson is the Data Editor at ProPublica. He is a winner of the Livingston Award for the 2011 series Redistricting: How Powerful Interests are Drawing You Out of a Vote. Jeff's public key.

Articles

Here’s Why the Close Collaboration Between the NSA and AT&T Matters

New disclosures about the National Security Agency's partnership with AT&T could reignite constitutional challenges to the spy agency's efforts to wiretap the Internet.

A Trail of Evidence Leading to AT&T’s Partnership with the NSA

Documents provided by Edward Snowden mention a special relationship between the National Security Agency and an unnamed telecommunications company. Here’s how we figured out that’s AT&T.

NSA Spying Relies on AT&T’s ‘Extreme Willingness to Help’

The National Security Agency’s ability to capture Internet traffic on United States soil has been based on an extraordinary, decadeslong partnership with a single company: AT&T.

New Snowden Documents Reveal Secret Memos Expanding Spying

The Obama administration has stepped up the NSA’s warrantless surveillance program on U.S. soil to search for signs of hacking.

Killing the Colorado: Explore the River

How the Colorado was turned into a giant plumbing system.

Money as a Weapons System

How U.S. commanders spent $2 billion of petty cash in Afghanistan

Somebody’s Already Using Verizon’s ID to Track Users

Twitter is using a newly discovered hidden code that the telecom carriers are adding to every page you visit – and it's very hard to opt out.

NSA Documents Suggest a Close Working Relationship Between NSA, U.S. Companies

Documents describe "contractual relationships" between NSA and U.S. companies, as well as undercover operatives at some U.S. companies.

Leaked Docs Show Spyware Used to Snoop on U.S. Computers

Software created by the controversial U.K. based Gamma Group International was used to spy on computers that appear to be located in the United States.

Announcing Raster Support for Simple Tiles

To support the work we're doing for a project launching this year that relies on satellite imagery, we've added raster-data support to the newest version of Simple Tiles.

The NSA Revelations All in One Chart

We plotted the NSA programs, showing which ones fall squarely into the agency’s stated mission of foreign surveillance, and which ones are more controversial.

School Segregation After Brown

Hundreds of school districts were placed under court order to desegregate following the Supreme Court’s 1954 Brown v. Board of Education ruling. Many communities do not know the status of these orders. Use this tool to find out whether your district is or ever was under a desegregation order, and al

FAQ About NSA’s Interest in Angry Birds and Other ‘Leaky Apps’

We lay out more from our story about how the NSA and its British counterpart have been scouring smartphone apps.

Spy Agencies Probe Angry Birds and Other Apps for Personal Data

New documents show the NSA and its British counterpart have access to advertiser data on smartphone apps, which can include your gender, income, and even whether you're a "swinger."

How We Made the 3-D New York City Flood Map

We used features only available in the most modern web browsers to create the interactive map of the city's flood zones.

How We Calculated Injury Rates for Temp and Non-Temp Workers

Worker’s comp data collected from five states shows temps are far more likely to be injured on the job.

Temporary Work, Lasting Harm

Temp workers are thrown into dangerous work with little training and suffer injuries far more often than permanent employees.

NIST to Review Standards After Cryptographers Cry Foul Over NSA Meddling

The federal institute that sets national standards for data encryption has announced it is reviewing all of its previous recommendations.

Government Standards Agency “Strongly” Suggests Dropping its Own Encryption Standard

The decision follows revelations about the NSA’s covert influence on computer security standards.

Johns Hopkins and the Case of the Missing NSA Blog Post

The university, which works closely with the NSA, apologizes to a professor after he was asked to remove his post.
Jeff Larson

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