Countries determine their own policies for accepting immigrants and refugees. No country has open borders. What is the difference between an immigrant and a refugee? Who determines this difference? How do international laws and groups affect national laws? Or even state laws? WorldBoston, Boston Network for International Development, and the United Nations Association of Greater Boston join forces to host this Great Decisions on Refugees and Global Migration. Mary Truong, Jeffrey Thielmen, and Professor Karen Jacobsen expand on the process of the immigration system, its triumphs and shortcomings.