The US Navy just paid $2.9 billion to a company that has never built a submarine. Here's why they had no choice. America has exactly two shipyards that can build nuclear subs. Electric Boat in Connecticut. Newport News in Virginia. The Navy needs two Virginia-class boats a year from them. They deliver 1.1. Then it gets worse. Under AUKUS, America promised to sell Australia 3 to 5 Virginia-class submarines starting in the early 2030s. We signed a deal to export a product we can't build fast…