"It's time to end the era of mass incarceration," Hillary Clinton proclaimed in a scheduled criminal-justice speech Wednesday that gave her the opportunity to address sentencing reform in the context of the troubles in Baltimore. It was a lukewarm effort in keeping with Hillaryland rules. Say as little as possible. Offend no interest group. Let handlers alert the media that the candidate is engaging in a big policy shift that is bound to attract young voters, even if the big policy shift leaves out specific positions on, say, marijuana legalization or the death penalty. I don't think it was smart...