In 1950, the United States military wanted to know whether an enemy could attack San Francisco with biological weapons. So naturally, they did the reassuring thing: they tested the idea on San Francisco. Not on a map. Not in a laboratory model. They put a ship offshore, released bacteria into the air, and watched the fog carry it toward the city.
The official explanation is that the organisms were harmless. The conspiracy theory says people got sick and one man died. And somewhere between those two claims is a government report that basically says: yes, the city was successfully contaminated.
I have several questions. None of them are comforting.
And before we get into the medical mystery, let me be clear about the first fact. The test happened. That part is not speculation. The question is what happened afterward—and whether the evidence can still tell us.
In this episode:
• The government really did spray the city
• The infections that turned a test into a mystery
• The receipts say the experiment worked
• What the conspiracy gets right—and what it cannot prove
Sources & further reading:
• Biological Warfare Scenarios: https://www.nationalacademies.org/read/9749/chapter/20
• Biological Testing Involving Human Subjects by the Department of Defense: https://www.governmentattic.org/60docs/DoDBTIHS95thCong1977.pdf
• Biological Warfare Scenarios: https://www.nationalacademies.org/read/9749/chapter/20
• Navy Fogged Bay Area With Bacteria: https://www.washingtonpost.com/archive/politics/1979/09/17/navy-fogged-bay-area-with-bacteria/cee3e0eb-7504-44d4-b89e-0c801152a324/
