NYPD CCTV camera surveillance

How Thousands of Volunteers & Amnesty International Mapped New York’s 15,000 Police Surveillance Cameras

The New York City Police Department has the ability to track people in Manhattan, Brooklyn, and the Bronx by running images from 15,280 surveillance cameras into invasive and discriminatory facial recognition software, a new Amnesty International investigation reveals. Here’s how thousands of volunteers from around the world participated in the investigation.

ProPublica illustration for The Secret IRS Files'

Data Journalism Top 10: Secret Tax Files, India’s Faltering Vaccines, Western Drought, Argentina’s News Deserts, The Gambia’s Toxic Water

Our NodeXL #ddj mapping from June 7 to 13, which tracks the most popular data journalism stories on Twitter each week, focused in on this major investigation by ProPublica, which offers an unprecedented look inside the financial lives of US billionaires. In this edition, we also feature a detailed look at India’s faltering vaccination campaign, a data project exploring Argentina’s news deserts, and an investigation of The Gambia’s water paradox.