Building rockets/ballistic missiles, is something the "bad guys" already know how to do, so I seriously see no reason why the Linux part of that should be any secret.
f.ex. the Danish Open Source project "Copenhagen Suborbitals" - which are hard working at building rockets, and have launched a few already, publish documents, detailing how they've build the different rocket types they built - it's all available for download right here: http://www.copenhagensuborbitals.com/
It's sad they felt the need for such IMHO unneeded secrecy, and about Linux even - which has NOTHING to do with the ballistic missile part, which isn't even a secret either.
Posted Sep 24, 2012 19:26 UTC (Mon) by ortalo (subscriber, #4654)
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I do not know about recent developments (thanks for the link, I will read).
However, even if the theory is known for both things, in practice, the technology associated to rockets or balistic missiles is usually seen as much more diverse and difficult to master and more strategic than the payload.
Personnally, I would tend to agree. But I am not much informed in that field (or I suppose I would not even allow me to talk of the topic on a public forum).