The 1970s saw for the United States a new wave of immigration. In 2005, the United States was the largest recipient of international migrants. ‘Mass population movements and resettlement, 1965 to the present’ looks at how this massive immigration compares to that of previous generations. Much in the nature of current international movement is a variation on old themes enhanced by new technologies. Contemporary migration is the consequence of the spreading out of modernizing processes. What makes the United States attractive today? What is the impact of contemporary immigration on the United States? With the insecurity in today's American job market, which exacerbates the risk-taking inherent in immigration, it is logical to ask: what do immigrants gain?