When asked "Will you continue the family separation policy at the border…" (As per MSNBC Jr. Trump)

The proper answer is:

We will assume that people coming across the border illegally are criminals. Therefor we will not believe claims of familial relations in a group until verified by DNA testing. Children will be separated from potential human traffickers to keep them safe until such verification is complete.

Furthermore, DNA testing will be done to verify that the criminals crossing the border illegally are not related to known criminals already here.