[Cryptography] Quantum computers and the Government

[gary at executabl.es]

What are the odds that governments already have quantum computers capable of breaking encryption (or will soon) and not tell anyone? RSA encryption, after all, was discovered and kept secret by the British government several years before it was "discovered" by the public; Especially with how weak certain common encryption schemes may be to quantum computers, it would be plausible that governments are rushing to develop and exploit this technology before the public has access to it. Wouldn't it make sense to start making the switch to quantum-resistant algorithms before such computers are publicly or commercially available to stop something like this from happening?