There is a lot of media attention on the Trump Administration’s admission that they don’t know where over 1,000 refugee children are and on it’s decision to separate newly-arrived immigrants from their children.
They are two separate issues.
I would strongly recommend you read at least one of these two articles to get clarity on what’s going on:
The U.S. lost track of 1,475 immigrant children last year. Here’s why people are outraged now. is from The Washington Post.
Did the Trump Administration Separate Immigrant Children From Parents and Lose Them? is from The New York Times.