Ahhh the good ol' days when we had an ICE agent assigned to the Dept and we went out "Jamacian hunting" or "Lipping" Cuban's (Castro tattooed all violent criminals with a number inside their lower lip) pulling down their lower lip with a pair of needle nose pliers.
That was when people cheered, CHEERED when you rounded up these violent thugs and sent them out of the country on the very next plane.
This is a step in the right direction but I still say if you want to get rid of the sanctuary cities then send in the US Marshal's to arrest the city fathers from the Mayor to the chief police for violating federal law. Throw a set of cuffs on DeBlasio and haul his fat ass out of his office and into the back of the Paddy Wagon and see how much cooperation you get from the Police first of all and how the rest of them fall into line.