President Donald Trump's former prison chief is sounding the alarm on Florida’s new migrant detention center known as “Alligator Alcatraz,” warning the facility is unsafe and logistically unworkable.

A site known as the Jetport is now home to a growing migrant prison encampment capable of holding thousands of detainees.

Florida this week started construction on a migrant detention facility the state is billing as “efficient” and “low-cost” – because Mother Nature will provide much of the security.