Don't allow foreign pilots training in american airspace

As an air traffic controller we have a ever increasing amount of traffic in the national air pace system. A huge portion of our workload is aircraft training flights. We should reduce the number of foreign pilots straining our tax payer funded system and give priority to those who live here and pay for it. Most of the foreign pilots who use our system for a few years then go to thier home country with no benefits to the united states. We need to prioritize safety and American pilots flying American planes for American airline companies to stay competitive on the world market.