[jrockway]

I'm not sure this makes much sense. Can you choose to eat non-FDA approved foods or drugs; no, you go to jail if you do. Airlines can train their own pilots, if someone was in the air force before becoming a commercial pilot, that's great but not relevant. People outside of the US use Internet protocols paid for by DARPA, but they don't pay taxes.

Anyway, it is very easy to avoid income tax in the US -- don't have any income. Last time I checked, you don't forfeit any services, either.