What are mixed movements and why do they challenge protection systems?

The mixed-movement's problem (the flows together): the refugees-and-migrants-in-the- same-boats (the smuggling-routes-and-the-persecution mixed (the one-vessel-many-statuses reality)); the policy's challenge (the differentiated-responses' duty (the screen-and-identify discipline: the refugee-in-the-mix identification (U3's RSD application at the border))); Thetrafficked persons: the trafficking's definition (the Palermo-Protocol's faces (the LAW5304-and- LAW5403-era companion: the act-means-purpose trilogy)); the trafficking-vs-refugee overlap (the persecution's trafficking (the social-group nexus faces; the non-refoulement-to-the-traffickers)); the protection's menu (the reflection-periods; the residence-permits' victim-faces; the non- punishment (the victim's crimes-bar)); the smuggling's distinction (the Palermo-smuggling protocol: the migrant's consent + the border-only face — the smuggling-vs-trafficking line).