Sheriff Arpaio in the news again. Who brings a tank to a cockfight? Sheriff Joe, that's who.
This isn't an immigration problem of his--more of a "might is right" problem. Also, a demonstration that conservatives, at one time, had it right to be skeptical of giving too much unchecked power into law enforcement. By pouring (literally) billions of borrowed tax dollars into tanks and other military grade weapons for local and county police departments, we set up a system where the way they fight crime becomes self-fulfilling.
And it is a habit that is hard to break.