You know, I get it that we shouldn't declassify our secret military tech and cede any unnecessary advantage to the Red-Commies (nevermind the fact that they had KGB agent working at Avro), but I'd bet that a lot of research conducted at the behest of the military has commercial value. I'd also bet that we spend a lot of effort inventing some of these things over again. It seems like a huge waste to keep these types of projects classified so long past their relevance.