Two databases which I can recommend for finding streaming video are linked below. Also, don't forget that you can limit your search in the library catalog to the "Video/DVD" format.
From Duke University Libraries, this search engine searches sites which were chosen based on their consultative status with the United Nations Economic and Social Council (ECOSOC) and also collated from University of Minnesota Human Rights Library, Duke University Libraries' NGO Research Guide, and the World Association of Non-Governmental Organizations (WANGO).
Given the number of issues surrounding the idea of immigration and the state, resources can be found in a variety of discipline-specific resources.
We've just added a trial for this new database, which provides "immediate access to more than 385 think tanks, research organizations, and advocacy groups including Hoover Institution, International Monetary Fund, Organization for Economic Cooperation and Development, RAND Corporation, and the World Bank."