Alcatraz is just the headline...
Meanwhile, The Trump Admin has already begin plans to reopen FIVE previously shuttered federal prisons to house immigration detainees.
Those facilities are reported as:
California City Correctional Facility
FCI Dublin (CA)
North Lake Correctional Facility (MI)
Delaney Hall Facility (NJ)
Midwest Regional Reception Center (KS)
Dear President Trump make a note to put in your files this is not enough You're going to need way more prisons to hold all the evil in this world keep going this is a great start