Simple keyword recognition à la "He said Treadstone! Track him down!" only happens in movies. If a one-man startup can develop the technology to analyze a bunch

Simple keyword recognition à la "He said Treadstone! Track him down!" only happens in movies. If a one-man startup can develop the technology to analyze a bunch of packets to and from a person and determine whether he is interested in rocks on top of hills or the anonymization tool, I'm sure the NSA can do even better.