[r3un1]

Security through obscurity has different merits depending on the context.

In software, it is a really bad idea to hope that your code is so obscure that no attacker will find a security flaw.

IRL, on the other hand, unknown positions of assets are often critical (the uncertainty whether you know about all the adversary's nuclear silos being a huge part of the nuclear deterrence policy). There is just so much resources you can throw at discovering underground pipelines.

[MrMorden]

Silos are hard to move; secret nuclear launch locations are provided by SSBNs.