We said 'NSA will use this' without the benefit of an inside source or access to Edward Snowden's cache of documents. Today, the Washington Post confirms, based on Snowden leaks, what we speculated in NSA Will Use This II and III, that the NSA would pursue developments in quantum computing...

NSA seeks to build quantum computer that could crack most types of encryption

Moreover, the article confirms what we had suggested as an alternate title of NSA Will Use This III: This Will Defeat NSA...

“The application of quantum technologies to encryption algorithms threatens to dramatically impact the US government’s ability to both protect its communications and eavesdrop on the communications of foreign governments,” according to an internal document provided by Snowden.