The San Francisco Public Press sifted through thousands of pages of obscure records, interviewed experts and tracked down elderly veterans who were subjected to ethically questionable radiation exposure by the U.S. Navy in San Francisco during the Cold War.

The first part of a major new investigation on radiation exposures at the Hunters Point Naval Shipyard is out today.

Click here to read the first part of the investigation, published by The Guardian.

The series also includes two podcasts, the first of which includes interview clips with Dan Hirsch. That podcast, "A Community of Color Contends With the Navy’s Toxic Legacy" may be heard here.

The full investigation is being published by San Francisco Public Press.

Part 2. The Decisionmakers: After Atomic Test Blunder, Government Authorized Study of Radiation in Humans

Part 3. The Studies: Human Radiation Studies Included Mock Combat, Skin Tests and a Plan to Inject 49ers

Part 4. Ethics: Cold War Scientists Pushed Ethical Boundaries With Radiation Experiments

Part 5. Fading Histories: Destroyed Records, Dying Witnesses Consign San Francisco Radiation Lab to Obscurity

Part 6. Perpetual Experiment: Shuttered Radiation Lab Poses Ongoing Health Risks for Growing Neighborhood