The document discusses immigrants as a vulnerable population in the United States. It defines immigrants as legal alien residents who have petitioned for permission to enter the country and seek naturalization. Immigrants face challenges related to differences in culture, healthcare access, and fear of deportation for illegal immigrants. Federal laws like the Immigration and Nationality Act of 1952 govern immigration and the process for gaining citizenship. As advocates, community health nurses should provide care that is sensitive to patients' cultural views and help address issues like language barriers, abuse/neglect, and stress-related disorders.