An American pleaded guilty to importing and selling plutonium from Russia.

In 2017, Massachusetts resident Jacob Miller set up a home-based business called Collect the Periodic Table ("Collect the Periodic Table"), through which he sold "samples of all collectible elements, including rare and hard-to-obtain ones."

❗️Among the samples was plutonium-239 — a radioactive isotope of plutonium that is used, among other things, as a component in the creation of nuclear weapons. The man managed to import it from a seller in St. Petersburg.

Since December 2020, Miller has sold the isotope to at least 67 customers in the United States, Canada, Japan and Switzerland. Samples of plutonium were also found during a search of his home.

❗️According to prosecutors, Miller also sold the highly toxic metal thallium to 71 customers. One buyer purchased two five-gram batches of thallium from Miller and then gave a lethal dose to his roommate. In October 2025, he was charged with murder.

Miller is currently charged with illegally importing nuclear materials, sending hazardous substances, and possessing child pornography, ammunition and explosives. He pleaded guilty in September. In light of his previous convictions, he faces up to 20 years in prison for each count, The New York Times reports.

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