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A.C. Thompson

Reporter A.C. Thompson covers hate crimes and racial extremism for ProPublica.

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A.C. Thompson is a staff reporter with ProPublica. His stories, which often examine the criminal justice system, have helped lead to the exoneration of two innocent San Francisco men sentenced to life in prison and the prosecution of seven New Orleans police officers. In addition to working as a print and web journalist, Thompson has reported extensively for television, serving as a producer and correspondent for the PBS documentary series Frontline. His life was fictionalized on the HBO show “Treme.”

The Accelerationists’ App: How Telegram Became the “Center of Gravity” for a New Breed of Domestic Terrorists

From attempting to incite racially motivated violence to encouraging attacks on critical infrastructure, the alleged crimes planned and advertised by extremists on Telegram go far beyond the charges facing CEO Pavel Durov.

America’s Dangerous Trucks

DOT Rejected Truck Side Guards After Meeting With Trucking Industry Lobbyists

The Department of Transportation allowed trucking lobbyists to review an unpublished report recommending a safety device that could save lives by preventing pedestrians and cyclists from getting crushed under large trucks.

America’s Dangerous Trucks

Trapped Under Trucks

For decades, federal safety regulators ignored credible scientific research and failed to take simple steps to stop gruesome roadway crashes involving heavy trucks. Meanwhile, the bodies piled up.

The Insurrection

What Happened When Twitter and Other Social Media Platforms Cracked Down on Extremists

In a Q&A with ProPublica reporter A.C. Thompson, former intelligence officer and data scientist Welton Chang explains how conspiracy theorists and violent racists fled to smaller platforms. Once there, their remarks festered and spread.

The Social Machine

Facebook Grew Marketplace to 1 Billion Users. Now Scammers Are Using It to Target People Around the World.

ProPublica identified thousands of Marketplace listings and profiles that broke the company’s rules, revealing how Facebook failed to safeguard users.

The Insurrection

The Boogaloo Bois Have Guns, Criminal Records and Military Training. Now They Want to Overthrow the Government.

ProPublica and FRONTLINE have identified more than twenty members with ties to the armed forces.

The Insurrection

Members of Several Well-Known Hate Groups Identified at Capitol Riot

A ProPublica-FRONTLINE review of the insurrection found several noted hardcore nativists and white nationalists who also participated in the 2017 white power rally in Charlottesville, Virginia.

Inside the Border Patrol

House Committee to Subpoena Records on Discipline Related to Secret Border Patrol Facebook Group

Rep. Carolyn Maloney says Customs and Border Protection won’t turn over records identifying agents disciplined or fired for their offensive posts

Inside the Border Patrol

After a Year of Investigation, the Border Patrol Has Little to Say About Agents’ Racist Facebook Group

The Border Patrol vowed a full accounting, but congressional investigators say the agency is blocking them and revealing little about its internal investigation.

How a Key Federal Civil Rights Agency Was Sidelined as Historic Protests Erupted

Launched by President Lyndon Johnson in 1964, the Community Relations Service has been without a director and short-staffed during recent unrest. The Trump administration has repeatedly tried to eliminate the agency.