Recent conversations about small modular reactors reminded me about the US government’s history of leaving and losing nuclear reactors in various places, during the cold war. To be fair, the Soviets lost a few, too. And, even recently – one aspect of the Russian submarine Kursk that sunk in 2000 [wik] that didn’t get a lot of air-play was the fact that a nuclear reactor and several nuclear warheads sank with it. That must have made recovering the wreck interesting, and I’m sure that NATO intelligence was skipping about with glee at a chance to literally dissect a Russian ballistic missile sub. I wonder how many times the Soviets got to perform similar dissections on US gear?