Marc E. Polymeropoulos

Polymeropoulos served multiple overseas assignments as chief of station and deputy chief of station in Europe, Asia, and high-threat environments. Polymeropoulos holds undergraduate and graduate degrees from Cornell University. ==Havana syndrome==

In December 2017, while serving as deputy chief of CIA clandestine operations for Europe and Eurasia, he traveled to Moscow on official business. He stated that the CIA's Office of Medical Services initially determined his symptoms were not consistent with those of diplomats affected in Havana. He retired from the CIA in 2019, citing his inability to work due to persistent headaches. Polymeropoulos has been featured in major investigative reporting on Havana syndrome, including Julia Ioffe's 2020 GQ investigation "The Mystery of the Immaculate Concussion" He has also briefed the Senate Select Committee on Intelligence and House Permanent Select Committee on Intelligence on anomalous health incidents. ==Post-CIA career==

After retiring, he authored Clarity in Crisis: Leadership Lessons from the CIA, published by HarperCollins in June 2021. He is a nonresident senior fellow at the Atlantic Council's Scowcroft Center for Strategy and Security, specializing in hybrid warfare. He has written for The Washington Post, The New York Times, Politico, Foreign Affairs, and Lawfare, and contributes a weekly column to the Washington Examiner. He has appeared on PBS NewsHour, CNN, NPR, MSNBC, and BBC. ==Hunter Biden laptop letter==

In October 2020, he co-drafted with former acting CIA director Michael Morell a public letter stating that emails from a laptop belonging to Hunter Biden, reported by the New York Post, had "all the classic earmarks of a Russian information operation." The letter was signed by 51 former intelligence officials. In April 2023, he testified before the House Judiciary Committee and House Permanent Select Committee on Intelligence in a transcribed interview. He stated that Morell told him that "someone from kind of the Biden world had asked for this". On January 20, 2025, President Donald Trump signed an executive order revoking the security clearances of the letter's signatories. ==References==