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This article applies Social Network Analysis (SNA) to illuminate the task forces created by US-based activists undertaking public relations on behalf of migrant caravan participants that travel from Honduras through Mexico toward the US. Four functional roles – influencers, messengers, support groups, and founding members – are identified and described in detail. When taking into account the characteristics of the individuals involved, these roles facilitate "bridge-actions": the mobilization of support across distinct political structures such as Native American tribal governments, international human rights venues, and US political parties. The result is a flexible public relations venture that has ability to influence diverse audiences – and extend beyond this particular mobilization effort. This has been most useful in the current American debate concerning restrictive US immigration policies and border security measures. [ABSTRACT FROM AUTHOR]

This article examines US Army psychological operations (PsyOp) as practiced during the waning years of the Cold War in Latin America. Certain themes, especially legitimacy, in-group/out-group, and safety/fear are demonstrated to be recurrent in regional PsyOp campaigns, largely because they seem to activate rich inference systems in the human brain. Yet anthropologists and other scholars of Latin America have paid little attention to military PsyOp. Despite our natural susceptibilities, we can best evaluate propaganda (and other claims to knowledge) by following the advice of Karl Popper: competing theories, including politically loaded ones, should always be explanatory and subject to criticism. [ABSTRACT FROM AUTHOR]