One of them caught my eye: #827 Stanislav Lunev. The BRIDGE. Payback for today. Q

He's a defector from Russia who claimed Russia was involved in bioweapons and had plans (in the event of war) to poison US water supplies.

His wiki page says

According to Lunev, a probable scenario in the event of war would have been poisoning the Potomac River with chemical or biological weapons, "targeting the residents of Washington, D.C."[1] He also considered it "likely" that GRU operatives placed "poison supplies near the tributaries to major US reservoirs."[7]

Those allegations have been confirmed by former SVR officer Kouzminov,[8] who was responsible for transporting pathogens from around the world for Soviet program of biological weapons in the 1980s and the early 1990s. He described a variety of biological warfare acts that would be carried out on the order of the Russian President in the event of hostilities, including poisoning public drinking-water supplies and food processing plants