Final answer:
The Bracero Program allowed Mexican agricultural workers to work in the US during WWII, and the Immigration Reform and Control Act provided for some immigrants' legalization, contrasting with fictitious programs and the termination policy affecting Native Americans.
Step-by-step explanation:
To answer the question regarding programs that allowed 'liminals' to become part of human society, it is essential to clarify that the word 'liminal' could refer to a fictional concept as it is not commonly associated with historical immigration programs. However, relating to historical United States immigration programs, the Bracero Program allowed Mexican agricultural workers to work temporarily in the United States during World War II. Another significant act was the Immigration Reform and Control Act, which aimed to curb illegal immigration but also provided for the legalization of certain undocumented immigrants. In contrast, the 'Extraterrestrial Resettlement Initiative' and 'Human-Liminal Integration Initiative' are fictitious and not aligned with actual historical programs. Likewise, programs like termination policy affected Native Americans by ending federal recognition of certain tribes and aimed to assimilate Native Americans into mainstream American society without considering their sovereign status.