It takes a lot of guts to be a whistleblower yet some people are brave enough to do so. While the rest of us might be afraid, they step up when things go wrong to uncover hidden truths & take on powerful organizations. And they often change history in the process! Here are ten times when whistleblowers made a real difference. One person may change the entire world. All it takes is courage to bring the truth out.
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Frank Serpico Exposes NYPD Corruption

During the late ’60s and early ’70s, Frank Serpico was a plainclothes cop in New York City who refused to go along with the widespread corruption in the NYPD. Many of his fellow officers took bribes & kickbacks. But Serpico wouldn’t have any of it. He reported them to his bosses yet they just ignored him—so he decided to go to The New York Times. His story hit the headlines & directly led to the Knapp Commission which brought about big changes in the NYPD.
Dr. Frederic Whitehurst Challenges FBI Lab Practices

Dr. Frederic Whitehurst worked as a forensic scientist at the FBI & he noticed that things weren’t right in the crime lab. His colleagues mishandled evidence—and, sometimes, tweaked results to help prosecutors win cases. Whitehurst couldn’t ignore this & he blew the whistle on these practices which led to a massive overhaul of the FBI’s forensic procedures.
Katharine Gun Leaks Memo on UN Spying

In 2003, Katharine Gun was working as a translator for British intelligence when she came across a top-secret NSA memo. It revealed the U.S. was spying on United Nations diplomats to get support for the Iraq War. Naturally, Gun was shocked—so she leaked the memo to the press, creating an international stir. Gun was charged under the Official Secrets Act but the case was dropped.
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Mordechai Vanunu Discloses Israel’s Nuclear Program

Mordechai Vanunu used to be a technician at Israel’s Dimona nuclear facility and in 1986, he decided to expose the country’s secret nuclear weapons program. He leaked information to The Sunday Times in London. In doing so, the world saw Israel’s nuclear capabilities for the first time. Israeli agents later kidnapped Vanunu & he spent 18 years in an Israeli prison.
Dr. Nancy Olivieri Raises Drug Safety Concerns

You’d expect pharmaceutical companies to be grateful when researchers discover unknown side-effects in their drugs—but no. In 1996, Dr. Nancy Olivieri found that a drug meant to treat thalassemia, a blood disorder, caused lethal liver damage. Naturally, she tried to warn her patients but the pharmaceutical company funding the research threatened her with legal action. Yet Olivieri stood her ground and helped raise awareness about patient safety & conflicts of interest in medical research.
Bunnatine Greenhouse Exposes Iraq War Contract Abuse

In 2005, Bunnatine Greenhouse was a senior contracting officer with the U.S. Army Corps of Engineers. She noticed that Halliburton subsidiary KBR received no-bid contracts for work in Iraq without following the usual procedures. As such, Greenhouse revealed the truth & testified before Congress about what she found.
Coleen Rowley Warns of FBI Intelligence Failures

After the 9/11 attacks, FBI agent Coleen Rowley wrote a memo in 2002 discussing how the agency mishandled information about Zacarias Moussaoui. He was a suspected terrorist who was in custody before the attacks. She explained how red tape & poor communication prevented crucial intelligence from reaching those who needed it. Later, Rowley testified before the Senate and the 9/11 Commission about her findings.
Sibel Edmonds Reveals Security Breaches at the FBI

Likewise, Sibel Edmonds worked as a contract linguist for the FBI after 9/11. She noticed serious security problems in the translation unit—including translators who were blocking or tampering with intelligence. When she reported these issues, the FBI fired her and slapped her with gag orders. But Edmonds continued to fight for an investigation which eventually happened.
Mark Whitacre Exposes Price-Fixing at ADM

In the early ’90s, Mark Whitacre worked at Archer Daniels Midland (ADM) where he discovered that ADM was involved in a global price-fixing scheme involving lysine. This was an additive used in animal feed. Instead of staying silent, Whitacre became an FBI informant, wearing a wire for almost three years & gathering top-secret information. Eventually, his work led to several executives being criminally convicted as well as hefty fines for ADM.
Daniel Ellsberg Leaks the Pentagon Papers

In 1971, military analyst Daniel Ellsberg leaked a classified report known as the Pentagon Papers to The New York Times. The report showed that the U.S. government had misled the public about the Vietnam War for years. As you might expect, the leak caused a huge uproar. It began to shift public opinion over the war which contributed to the eventual ending of the conflict.
Disclaimer: This list is solely the author’s opinion based on research and publicly available information.
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