My comment above is germaine to the issue of taxation, which is what we were discussing. You can't have it both ways. I would direct you to what you wrote above. You seem to be unaware of the definition of 'tax-protestor'. I, for one, have never heard Ed running around protesting taxes.
Tax evasion is a crime.
What is legally valid about this. That is not what he 'did'. You are using terms the meanings of which you are apparently ignorant. It would make all the difference. I would think that he publicly spoke about it before he was in tax trouble.