key word: employer. this does NOT mean what the common person thinks it does. it refers to an Office/Officer of the federal government. the definition does not include private americans working and doing business in the private sector because such a compelled, direct tax without apportionment is expressly prohibited by the Constitution. DC is foreign relative to the several States. Those laws fly for employees/ers of the fed because such PERSONS do not have the same Constitutional protections as We the PEOPLE. 'twas the same with infamous Gold confiscation - then as now, "my people perish for a lack of knowledge." That was The Book of the.... LAW, you see. So THAT would be the type of knowledge referred to. Learn #law or die a slave.