The goal of science is knowledge discovery and creation. There is an additional goal for those scientists who work with groups like migrant Latinos and on pressing social topics like HIV prevention: The generalization of research findings to develop recommendations for changes in policies and programs affecting the groups under study. The seven sets of researchers whose work has been presented in the previous chapters created knowledge about HIV prevention which has potential utility to those in policymaking or program administration positions. The researchers' findings can be used to change policies to foster HIV / AIDS prevention for migrant Latinos in the United States and to improve HIV prevention programs for this population. By decreasing the spread of HIV among this population, just as with any other population group in the U.S., we will be able to stem the spread of HIV and AIDS and to reduce the social and financial costs to all.