American workers will be forced to compete with a constant flow of guest workers who would always be at the low end of the salary scale by virtue of the fact that they would have to leave every 2 years. So if guest workers are kicked out of the country every 2 years. wages cannot increase. there will always be a justification to pay those workers the lowest possible wage. The reqiuirement that these guest workers leave the country every 2 years would also result in an increase in the number of individuals who overstay their visas in order to avoid having to leave the United States for that lengthy period of time. It would also create additional costs in terms of tracking those individuals and ensuring that they. in fact. do leave the country. These costs. of course. would have to be borne by the taxpayer.