Since the Constitution does not specifically state that we have to pay income taxes. Anyone care to volunteer to not pay his/her federal income tax for the next couple of years and see what IRS will do to him/her? Personally I think that someone will end up in jail, or IRS will take the money directly out of that person's bank account, or put his/her estate up for auction, etc.
But words are cheap, this is a worthy endeavour to uphold the principle of the Constitution.