[gmueckl]

There are lots of anecdotes around about things like this, but correlation does not constitute causation. Where are e.g. the wireshark dumps showing that data was transmitted to some server while/after he was talking? Capturing the traffic should be a simple exercises.

[icebraining]

I'm agnostic on the issue, but assuming they're just transmitting keywords, it would be pretty easy (and sensible, considering the implications!) to hide them inside otherwise innocuous packets.