Chapter 12: Immigration and Border Security

Immigration and Border Security details the evolution of migration patterns over the last half-century, noting a significant shift in demographic origins from European nations toward Latin American and Asian regions, while analyzing modern "push factors" such as economic instability and environmental displacement that create climate migrants. The discussion centers on the Immigration and Nationality Act (INA), outlining legal standards for exclusion based on security concerns or health, while also addressing the humanitarian complexities involving asylum seekers, credible fear hearings, and the legal protections afforded to unaccompanied minors. A comparative analysis is provided between the northern frontier with Canada—characterized by extensive trade partnerships like the Smart Borders Accord—and the southern Mexican border, which faces unique challenges involving unauthorized crossings, criminal cartels, and the implementation of physical and "smart wall" technologies. Central to the curriculum is the Department of Homeland Security’s (DHS) risk-based enforcement strategy, which utilizes quantitative models like the Bioterrorism Risk Assessment (BTRA) and the Integrated Terrorism Risk Assessment (ITRA) to mitigate threats from weapons of mass destruction (CBRNEE) and transnational crime. The organizational roles of the four primary border agencies—Customs and Border Protection (CBP), Immigration and Customs Enforcement (ICE), the Transportation Security Administration (TSA), and the US Coast Guard (USCG)—are thoroughly examined, highlighting their specific missions in line watch, interior investigation, aviation security, and maritime defense. Furthermore, the text evaluates administrative tools such as the US-VISIT biometric system, the E-Verify employer database, and Alternatives to Detention (ATD) programs, while critiquing the economic cost-effectiveness of border hardening versus labor-market enforcement.