"Once you're there, there's nowhere to go, nowhere to hide," Florida's attorney general said of the new facility.

In the interest of carrying out more of President Donald Trump’s promised mass deportations, officials in Florida this week started construction on a migrant detention facility they’re billing as “efficient” and “low-cost” – because mother nature will provide much of the security.

Immigrant advocates said the move creates a whole new form of detention outside the scope of the federal government.