Separating Families?
...it is not unusual for human traffickers to kidnap children and bring them here to be exploited. One good reason for separating the children from "parents" is that the folks might not actually be parents. Checking via the DNA route is one way to distinguish between actual parents and human traffickers. It takes time.
Obama administration placed children with human traffickers, report says
http://www.washingtonpost.com/national/obama-administration-placed-children-with-human-traffickers-report-says/2016/01/28/39465050-c542-11e5-9693-933a4d31bcc8_story.html?utm_term=.450ba9e3f07e
...we wouldn't want a repeat of this would we.

Liberals are like a "Slinky". Totally useless, but somehow ya can't help but smile when you see one tumble down a flight of stairs!