If you’ve ever watched the 2023 movie “Oppenheimer,” there’s a scene where the titular physicist watches soldiers put bomb parts into trucks that then drive off into the horizon. Everyone knows what happened after that: The U.S. dropped the atomic bomb on Japan, leading to the end of World War II and the advent of the nuclear age. What isn’t shown is those bomb parts reportedly first headed to Mare Island, a ship-building facility in Vallejo in the northern San Francisco Bay. “These packages