Child Migrants

http://www.vox.com/2014/6/16/5813406/explain-child-migrant-crisis-central-america-unaccompanied-children-immigrants-daca

So here is a case where a loophole in US law dealing with child migrants from Central America (as opposed to Mexico) are detained for court proceedings rather than simply sent home.

All that is required to fix this is Congress to do the right thing.