She told staff that, in nearly two weeks, ICE investigators had visited 1,500 residences of unaccompanied minors. Agents had uncovered a handful of instances of what she said were cases of sex and labor trafficking. Salazar did not provide details but said identifying even one case of abuse is significant.

“Those are my marching orders,” Salazar told staffers. “While I will never do something outside the law for anybody or anything, and while we are operating within the law, we will expect all of you to do so and be supportive of that.”

Salazar said she expected an increase in the number of children taken from their sponsors and placed back into federal custody, which in the past has been rare.

Since Salazar took charge, ORR has instituted a raft of strict vetting rules for sponsors of immigrant children that the agency argues are needed to ensure sponsors are properly screened. Those include no longer accepting foreign passports or IDs as forms of identification unless people have legal authorization to be in the U.S. The resettlement agency also expanded DNA checks of relatives and increased income requirements, including making sponsors submit recent pay stubs or tax returns. (The IRS recently announced that it would share tax information with ICE to facilitate deportations.)