I watched it from Netflix acouple months back. It was definately interesting but even if the IRS won't show you the law that says it's mandatory, they will make your life a living hell if you resist.
well they cant show any law requiring it so how can it be illegal not to pay taxes? The fact that the IRS has been able to get away without having to give answers speaks for how much the govt can get away with in this country even with people knowing whats going on.