David Dampier's comment about cryptography in this article is a bit surprising: “I don’t care what company is selling you encryption software. Whatever they are going to sell you, it can be decrypted. There’s nothing that is infallible.” Leaving aside the fact that a significant fraction of cryptographic software that is free and open source (ssh, gpg, tls implementations in browsers, etc.) the idea that any cryptography available to an end user is breakable by an adversary like NSA is not supported by what we know about current and historical progress in the mathematics of cryptanalysis. Dampier's credentials on his academic home page are not that relevant or convincing when it comes to cryptography proper. I would be more likely to go with Bruce Schneier's opinion that cryptography is still secure with appropriate key sizes: "Still, I trust the mathematics" https://www.schneier.com/blog/archives/2013/09/the_nsas_cryp...