For Chinese seeking educational opportunity, the United States has long been the top spot, but as more want to stay to work, their paths are full of roadblocks. China, United States, International Study and Teaching, Visas, Foreign Workers, Immigration and Emigration, Labor and Jobs, United States International Relations For Chinese seeking educational opportunity, the United States has long been the top spot, but as more want to stay to work, their paths are full of roadblocks. NYT > Business