There have been a number of nuclear whistleblowers, often nuclear engineers, who have identified safety concerns about nuclear power and nuclear weapons production. That list is partial and non-exhaustive.

List NameYearCompanyActionAdditional LinksJohn Pace1959In 1959, John Pace was employed at the Santa Susana Field Laboratory, 36 miles from Los Angeles, at the time of the partial meltdown during the Sodium Reactor Experiment. According to Pace, the reactor building doors and reactor exhaust stack were opened, releasing radiation into the atmosphere. Dan Parks also worked at the Santa Susana Field Lab, as a health physicist in the 1960s, where he witnessed the burning of radioactive waste in burn pits, and frequently saw workers illegally vent radiation into the atmosphere. In 2015 they spoke out about the incident in an investigative report by NBC News.Dan ParksKaren Silkwood1974Kerr-McGeeThe first prominent nuclear whistleblower was Karen Silkwood, who worked as a chemical technician at a Kerr-McGee nuclear fuel plant. Silkwood became an activist in the Oil, Chemical and Atomic Workers International Union in order to protest health and safety issues. In 1974, she testified to the United States Atomic Energy Commission about her concerns.

A few months later she died in a car crash under mysterious conditions on the way to a meeting with a New York Times reporter and a national union leader. The 1983 film Silkwood is an account of this story.Gregory C. Minor1976General ElectricOn 2 February 1976, Gregory C. Minor, Richard B. Hubbard, and Dale G. Bridenbaugh (the GE Three) blew the whistle on safety problems at nuclear power plants, their action has been called "an exemplary instance of whistleblowing".Whistleblower on Nuclear Plant Safety

The three engineers gained the attention of journalists and their disclosures about the threats of nuclear power had a significant impact. They timed their statements to coincide with their resignations from responsible positions in General Electric's nuclear energy division, and later established themselves as consultants on the nuclear power industry for state governments, federal agencies, and overseas governments. The consulting firm they formed, MHB Technical Associates, was technical advisor for the movie The China Syndrome. The three engineers participated in Congressional hearings which their disclosures precipitated.

Browns Ferry nuclear power plant construction began in 1966. It was located in Alabama and in 1967 it earned a federal construction permit. The plant received new design standards which call for "physical separation of electrical cables."Weil, Vivian. "Moral Responsibility and Whistleblowing in the Nuclear Industry: Browns Ferry and Three Mile Island." (1983). There was an issue with the instructions on how to accomplish this so the AEC inspector F.U. Bower requested that the AEC elaborate; however, there was no response from the organization and installation went on. Still, no instructions were issued after five failed inspections in 1970. The lack of cable separation instructions led to the sacrifice of safety coolant systems in two of the units in order to improve one with severe safety violation. The ignorance of the AEC led to the fire that occurred on 22 March 1975, that almost led to a radiation leak. The substance separating the wires caught fire when tests to find air leaks with a candle ignited it thus resulting in damage to the control systems. The fire was extinguished when a local fireman asked that he be allowed to "put a little water on it." With damage to the control systems, the cooling system that keeps the units from leaking radiation did not work properly. Somehow the situation was avoided and the units were put out of service. Throughout the occurrence of these events Bridenbaugh had been discussing his reservations on the safety at the plant in vain and in 1976 a year later Bridenbaugh, Hubbard and Minor resigned.Richard B. HubbardDale G. BridenbaughLou PutneyDuke EnergyLou Putney came on the scene of the Crystal River 3 plant after receiving a call from a plant engineer. The engineer claimed that the managers hired engineers based on "good ol' boy mentality."Riggs, Stephanie. "FLORIDA POWER AND THE CRYSTAL RIVER NUCLEAR POWER PLANT." (1997). The plant had experienced numerous shut downs since 1978. Along with this concern, the engineer was not confident that the manager possessed the qualifications to be a manager.

Although the engineer pursued nothing further with his complaint, it prompted Putney to purchase shares of stock in the company that would allow him to file "shareholder resolutions." Putney had looked into the nuclear reactors that were built of an unsafe material for emergency cooling procedures. The NRC had placed Crystal River on the top 14 worst reactors list because of this. So, the shares were purchased in 1981, which is when Putney filed his first shareholder resolution requesting the plant be shut down.

This tradition was upheld by Putney for seven years until he was required to purchase more stock in order to continue filing resolutions. Over the course of sixteen years, Putney filed a total of fourteen shareholder resolutions. All of these resolutions were ignored and were met with offers to buy out his shares so he could no longer file the resolutions. The plant was officially decommissioned in September 2009.Ronald Goldstein1985General ElectricRonald J. Goldstein was a supervisor employed by EBASCO, a major contractor for the construction of the South Texas plants. In the summer of 1985, Goldstein identified safety problems to SAFETEAM, an internal compliance program established by EBASCO and Houston Lighting, including noncompliance with safety procedures, the failure to issue safety compliance reports, and quality control violations affecting the safety of the plant.

SAFETEAM was promoted as an independent safe haven for employees to voice their safety concerns. The two companies did not inform their employees that they did not believe complaints reported to SAFETEAM had any legal protection. After he filed his report to SAFETEAM, Goldstein was fired. Subsequently, Goldstein filed suit under federal nuclear whistleblower statutes.

The U.S. Department of Labor ruled that his submissions to SAFETEAM were protected and his dismissal was invalid, a finding upheld by Labor Secretary Lynn Martin. The ruling was appealed and overturned by the Fifth Circuit Court of Appeals, which ruled that private programs offered no protection to whistleblowers. After Goldstein lost his case, Congress amended the federal nuclear whistleblower law to provide protection reports made to internal systems and prevent retaliation against whistleblowers.Lisa Crawford1985Fernald Feed Materials Production CenterThe Fernald Feed Materials Production Center was built in Crosby Township, Ohio in 1951, and decommissioned in 1989. Fernald processed uranium trioxide and uranium tetrafluoride, among other radioactive materials, to produce the uranium fuel cores for nuclear weapons. It was shrouded in suspicion with many manager changes and the people of the town ill-informed of the purpose of the plant. The Fernald Feed Materials Production Center also conducted an evaluation of how much material was contaminated by Radium. Using 138 pieces of the CR-39 film assays, they were able to determine that people working in the area where K-65 silos (underground chambers used to store missiles) had lower levels of exposure of materials contaminated by Radon than the Q-11 silos between the period of 1952-1988 Journal of Exposure Science and Environmental Epidemiology.

From 1951 to 1995, the plant had numerous scandals including faking numbers for contamination and disregarding evidence of ground water pollution. Among the citizens affected by the pollution was Mrs. Lisa Crawford who took action. Crawford and other residents filed a lawsuit in 1985, and she became president of the organization.FRESH (Fernald Residents for Environmental Safety and Health) A lawsuit was then filed once again against Fernald by former employees several years later in 1990. After several years of being heavily advised not to blow the whistle, the workers earned themselves a $15 million settlement and lifelong medical monitoring. In 1992, FERMCO was hired to construct a cleanup plan for the plant and in 1996, around accusations of wasteful spending, the cleanup of ground water and soil was completed.Roger Wensil1985DuPont B.F. ShawRoger D. Wensil was America’s first nationally recognized whistleblower at a nuclear weapons facility.

In 1985, Wensil worked as a pipe-fitter for Dupont B.F. Shaw Company, a subcontractor at the Savannah River Nuclear Weapons Facility in South Carolina. On the job, Wensil witnessed the use, sale, and distribution of illegal drugs among construction workers at the plant that handles highly radioactive nuclear waste. Concerned about the damage that those under the influence could cause, Wensil reported to his supervisors about the safety violations. He was dismissed six months after the disclosure. A month after Wensil left, he married Norma Morris, who worked for Shaw at the time. She alleged that she had been harassed and forced to leave her job because of her husband’s disclosure.

Wensil filed a complaint with both the U.S. Department of Labor and the Department of Energy in 1986. The DOE upheld Wensil’s termination, but the DOL found credible evidence of safety violations and ruled that Wensil had been unfairly dismissed. Wensil was reinstated, but he again faced workplace retaliation and was forced out of his job three months after.

Wensil’s case led to the passing of the nuclear weapon whistleblowers protection in 1992.Joy Adams1985Joy P. Adams was terminated in retaliation after testifying in support of Roger Wensil, a whistleblower who disclosed safety violations at the federal Savannah River nuclear weapons facility in South Carolina.Mordechai Vanunu1986Negev Nuclear Research CenterMordechai Vanunu blew the whistle on the nuclear plant in Dimona, Israel in an interview with The Sunday Times that was published on 5 October 1986. According to Vanunu, this plant had been producing nuclear weapons for 10 to 20 years. It is estimated that there may be around 200 nuclear weapons in possession of Israel's nuclear weapons program. Vanunu demonstrated his knowledge to Frank Barnaby and Theodore Taylor, and they confirmed the credibility of his story. Frank Barnaby wrote in his Declaration of Frank Barnaby in the Matter of Mordechai Vanunu that Vanunu had the bare minimum knowledge of nuclear physics that a technician should have and accurately described the makeup of the nuclear plant in Dimona. Having served in full his 18 years prison term, ruled in closed door trial, including 11 years in solitary Vanunu has been further in and out of jail after. In 2007, sentenced to six months for violating terms of his parole, and in May 2010, again to three months for having met foreigners in violation of his release terms from jail.

Vanunu is ethnic Mizrahi Jew, born in Marrakesh Morocco, having emigrated to Israel, following its independence in 1948, like many of the North African Jewish community did. Amnesty International issued a press release on 2 July 2007, stating that "The organisation considers Mordechai Vanunu to be a prisoner of conscience and calls for his immediate and unconditional release." Vanunu has been characterized internationally as a whistleblower and by Israel as a traitor. Despite the whistle blown towards the operation of the nuclear weapons program in Israel, the Israeli government denied the existence of all allegations.