Sanctuary cities are a stop gap solution. We need to fix our immigration laws in this country so that people who come here as criminals don't have anywhere to hide and those cities sheltering the most vulnerable have no reason to unwittingly protect them. My initial reaction was to punish those who defied the law, but punishing cities in this way only hurts Americans and peaceful immigrants in those cities far more than it will hurt anyone else. The acts of a few does not invalidate the actions taken be these cities nor should it cause he masses to suffer.