Mockingbirds trying to spin the border DNA testing as an invasion of privacy,a gateway to surveillance, and an admission of incompetence. They are trying to say now that they were not properly registering parents with children instead of what this is, adults smuggling captured children under the guise of parental relationship for human trafficking purposes.

https://www.cnn.com/2018/07/05/politics/dna-testing-migrant-family-separation/index.html