Susan Shelley: What’s wrong with enforcing the law?

President Donald Trump is enforcing immigration law, and for the first time in many decades immigration enforcement does not resemble a basketball game.

In basketball, there are unwritten rules about what fouls the referees will or won’t call, and when, and on which players. It’s easy to tell when an unwritten rule has been broken. There’s a coast-to-coast roar of shock and outrage that emanates from bars, living rooms and sports books, followed by an announcer wryly observing that nobody buys a ticket to see the refs...