The next head of Homeland Security needs to do a lot more to live up to Trump’s promises

A change in leadership at the Department of Homeland Security is a good time to assess what should change and what shouldn’t when it comes to two of President Donald Trump’s top campaign promises: border security and mass deportations.

The Trump administration very quickly and successfully secured the border in its first year. Maintaining this is imperative to prevent additional national security, public safety and economic threats from entering the U.S.

With new DHS leadership, however...