The rioting in Baltimore wasn’t hooliganism. It was a protest against the depredations of the ghetto economy. Most people can sympathize with the anger on display this week in the streets of Baltimore. It’s relatively easy to feel compassion for people who’ve suffered police brutality and abject poverty, even if you’ve never experienced either. Looting and burning is harder to understand, since torching a CVS store would hardly seem to have anything to do with protesting the actions of the Baltimore Police Department. President Obama decried the Baltimore riots as “senseless violence and destruction.” Baltimore Mayor Stephanie Rawlings-Blake also despaired...