Contrary to the author, the worst feature of the income tax is its rampant, illegal enforcement. The whole income tax is voluntary and the government breaks the law to enforce the tax. It is easy enough to understand that the income tax is voluntary because it doesn't in with any of the taxing clauses of the Constitution. The more popular known reason is that the income tax violates the fifth amendment. One is allegedly told by one's first school teacher that one has to file an income tax return; however, one's income tax return can be used against you in court in many ways. The reason that one's tax return can be used against a person in court is that it is regarded as filed voluntarily per one's fifth amendment right not to be a witness against oneself. For a fuller explanation of this, see the books of Peter Schiff's father, Irwin Schiff. Until we prosecute some prosecutors and judges (and throw them in jail), we will not have a fair hearing of this phony, voluntary tax.