On Monday, the Broward County Sheriff's Office in Florida released a public service announcement attempting to convince young people not to riot in case George Zimmerman, the man who shot and killed Trayvon Martin, was acquitted of second-degree murder. That likelihood remains high, thanks to the fact that the prosecution itself was weak and pushed forward by a breathless media desperate for a racial hot point to drive ratings. The sheriff's office announced that it was "working closely with the Sanford Police Department and other local law enforcement agencies" on a "response plan in anticipation of the verdict." Sheriff Scott...