A Taxonomy of PRISM Possibilities

NSA
A lot of people are trying to synthesize reasonable technical explanations for how the NSA could implement the program described in the leaked PowerPoint deck and keep it secret for so long. In an effort to improve the quality of the public discussion, I have decided to create a taxonomy of the theories that I have seen floated and supply my own commentary in italics.

Everything listed below is based upon data contained in the news articles I have seen. I also recognize that many of these theories sound far-fetched, although I have to admit that my personal Overton Window for crazy conspiracy theories has shifted in the last 24 hours.

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