Did the Government Poison a U.S. City? Inside the Army’s Secret Tests in St. Louis

Most Americans believe their government would never secretly experiment on its own citizens. The truth, revealed through decades of uncovered documents and survivors’ firsthand stories, is far more unsettling. What happened in St. Louis during the Cold War isn’t a conspiracy theory or a twisted urban legend—it’s a documented piece of American history. This video from NewsNation dives into the truth; summary generated by artificial intelligence.

During the 1950s and 1960s, the federal government conducted secret experiments on Americans, including orphans and pregnant women, without their knowledge. The story of St. Louis stands out as one of the darkest examples of government secrecy and deception, and it still haunts thousands today.

Cold War Human Experiments: Hidden Dangers in Plain Sight

The race against the Soviet Union fueled actions that crossed every line in ethics and human decency. The government signed off on unthinkable tests, often on the nation’s most vulnerable.

Children—some of them orphans—were told they were joining a science club. They’d get a quart of milk each day and a trip to the beach. In reality, they were fed oatmeal laced with radioactive material, part of a study run by the Massachusetts Institute of Technology and the Atomic Energy Commission.

Pregnant women at top hospitals in Tennessee and California were given radioactive cocktails to track how those chemicals affected their unborn babies. None of these women volunteered for these risky tests. Many later suffered miscarriages, birth defects, and cancer.

These facts aren’t rumors. They’re found in government memos, MIT documents, and congressional hearings. Survivors have bravely spoken out about the lasting impact:

“I remember the lumps on my arms and my stomach. They told me it was just vitamins. Now I know the truth.”

The story changed lives, broke trust, and made thousands question the safety of the country’s own systems.

The Mystery of the St. Louis Fog: A Neighborhood Transformed Without Consent

If you grew up in St. Louis’s Pruitt-Igoe neighborhood in the 1950s or 60s, the memory of the “fog” sticks with you. Residents recall thick, ghostly clouds rolling down streets, sprayed from trucks and rooftops, clinging to skin and leaving behind a foul, chemical smell.

Kids ran through it, hoping to cool down in the summer heat. Many got sick. Some reported headaches, nausea, dizziness, and skin rashes that lingered for weeks.

Here’s how residents described those days:

• “It looked like an eerie smoke, coming from the back of trucks and the tops of buildings.”
• “Some of us got headaches, felt dizzy, and couldn’t breathe right.”
• “We were just kids. We never thought the government would treat us like lab rats.”

Key symptoms and feelings reported by residents:

• Headaches and dizziness
• Skin irritation and rashes
• Nausea and vomiting
• Feelings of being betrayed and used

The Truth About Pruitt-Igoe: How St. Louis Became a Test Site

Pruitt-Igoe was once home to over 10,000 people living in 33 high-rise buildings. By 1976, the complex was demolished—leaving behind empty lots and a lot of unanswered questions.

According to the National Research Council, St. Louis wasn’t chosen at random. The city shared features with likely Soviet targets: high population density, terrain, and its proximity to a river. The government wanted to see how chemicals spread in a city that could stand in for Moscow.

Pruitt-Igoe Fast Facts

Fact	Details
Number of residents	Over 10,000
Number of high-rise buildings	33
Years of secret spraying	1950s and 1960s
Year complex demolished	1976
Chemicals sprayed	Zinc cadmium sulfide (a carcinogen)

During the experiments, the Army admitted that it sprayed zinc cadmium sulfide—a chemical containing cadmium, already known then to cause cancer—from airplanes, the tops of buildings, and trucks. Some witnesses saw men dressed as maintenance workers, but wearing full-body suits and goggles. The spray was so thick, some children recall, “you couldn’t see through it, and it stuck to your skin like glue.”

Residents never consented. Many believe they were treated like disposable subjects by an unfeeling government.

Sickness, Loss, and Betrayal: The Human Cost

People living in Pruitt-Igoe today still feel the impact. Families have lost loved ones to rare cancers and diseases they believe are tied to the secret testing.

One resident shared:
“I lost my brother last month. My older siblings are gone, too. I was just diagnosed with a rare form of lymphoma.”

Some are military veterans. They trusted the country they served, only to find themselves betrayed by secret programs run at home. The sense of outrage runs deep:

“We fought for America. To know our own government did this to us, it hurts at the core.”

The Army’s Official Story and the Missing Records

When NewsNation asked the Army for answers, officials handed over a one-page letter. It cited investigations from 1994 and 1997, claiming “inhalation exposure would not pose a health risk” and pointing to a larger review by the National Research Council.

Read closely, though, and the NRC’s report shows a different story:

“Repeated exposure to zinc cadmium sulfide can cause kidney or bone toxicity or lung cancer if levels are high enough. We could not fully assess the risk because some Army records remain classified or missing.”

In plain terms: The government says everything is fine, but their own reports admit the truth is buried in records nobody can access. Key details the NRC needed were never found or never released. The site wasn’t tested, the people exposed weren’t studied, and the story remains incomplete.

Where the investigation fell short:

1. Army failed to provide all exposure records.
2. Many records are still classified for “national security.”
3. The NRC could not run independent studies without the missing data.

This stonewalling looks less like an accident and more like an effort to wait out the survivors. As one resident put it, “They’re just waiting for all of us to die.”

Digging Deeper: Experts, Researchers, and the Trail of Secrecy

Dr. Lisa Martino Taylor has spent years tracking down documents, trying to piece together what happened in St. Louis and in other experiments nationwide. Her work helped uncover a pattern of government-run tests on children and mothers, hidden behind official seals.

She found evidence showing that the very people behind the St. Louis operation were radiological weapons experts. Brigadier General William Creasy and scientist Philip Leighton ran America’s Cold War radiological weapons program. Leighton, in particular, specialized in releasing radioactive particles in fog to drift over enemy territory.

Records show military planners picked St. Louis as a test case because it mirrored Moscow. Leighton himself wrote several reports on the spraying—but the final one, known as “Joint Quarterly Report 5,” is still classified.

A Freedom of Information Act (FOIA) request was filed, but months have gone by with no answer.

One of the nation’s most respected activists, Erin Brokovich, sees this as a pattern of cover-up:

“It’s always the cover up that enrages people, that hurts people. Communities can handle the truth. What they can’t handle is the lie.”

The Fight for Justice: Political Advocacy and the Search for Answers

With so many stories coming to light, lawmakers are starting to notice. Congressman Wesley Bell from Missouri called for St. Louis residents of Pruitt-Igoe to be added to the Radiation Exposure Compensation Act, which would provide payouts to anyone who can prove they were exposed to radiation during the Cold War.

But that’s nearly impossible: Most records remain classified or lost. People can’t prove what was in the fog or link their illnesses to the spraying. All the while, families continue to lose loved ones to cancers and unexplained diseases.

Congressman Bell summed it up:

“When American citizens have been impacted and exposed to chemicals, specifically because of the federal government, we should all do the right thing. Make these folks whole again—get them the compensation and the treatment they need.”

Why Telling the Truth Still Matters

St. Louis isn’t alone. Other Cold War-era experiments hid behind walls of secrecy:

Notable Cold War Government Experiments

• Radioactive oatmeal given to children at the Fernald State School
• Pregnant women given radioactive iron at top US hospitals
• Open-air spraying of chemicals and bacteria in US and Canadian cities

These cases prove the importance of government transparency. People deserve to know what happened to them, no matter how many years have passed.

The consequences of secrecy go far beyond health risks. Government deception shatters public trust and leaves wounds that never heal. The fight for open records and truth is still going, and it’s up to all of us to push for it.

For more details on the investigation, you can read the full investigation report by NewsNation.

Conclusion: Keep Pushing for Answers

What happened in St. Louis is more than history. It’s a warning. When citizens stop questioning authority, secrets grow in the shadows. The truth will keep coming out, thanks to those who refuse to let it stay buried—including survivors, journalists, and watchdogs like Dr. Martino Taylor.

Residents of Pruitt-Igoe and their families deserve justice. Americans deserve honesty from their government, regardless of how hard the truth might be to face.

Stay informed, demand transparency, and support real journalism. Download the NewsNation app for updates on this story and more, and stay engaged with fact-based, unbiased reporting.

Never forget: If it could happen to them, it could happen to anyone.