From the New York Times on Michael Barbaro, this is the Daily.

Today, the U.S. government lost 1500 undocumented children, but not for the reason many believed.

What the confusion says about President Trump's unique approach to immigration.

Thursday, May 31st.

Thank you, Mr. McKammon. Mr. Wagner.

Chairman Portman, ranking member Carper and members of the subcommittee.

It is my honor to appear on behalf of the Department of Health and Human Services.

I'm Steve Wagner, Acting Assistant Secretary for Children and Families.

So on April 26th, Stephen Wagner, who's a top official at the Health and Human Services Department,

he goes in front of a Senate subcommittee and he's talking about, in general, what's happening at the border

and what's happening in particular to children who cross the border.

These changes help protect children from traffickers, smugglers, and others who wish to do them harm.

So he talks about how many are in custody, where in custody they are.

What countries are they from? Why are they coming here?

Caitlin Dickerson covers immigration for the times.

And in the course of his testimony, he mentions 1,500 kids, who he says the US government has lost track of.

We don't have a mechanism for tracking down the kids.

1,500 kids are missing, essentially.

Right.

This morning, an immigration mystery, what happened to nearly 1,500 missing unaccompanied migrant children, many are from Central America.

It's in response to the disclosure that the federal government lost track of nearly 1,500 immigrant children.

And it created a lot of concern that it's sort of gotten larger and larger.

...