In an 1873 decision, the Supreme Court by a 5-4 vote--highly unusual in those days--upheld a bribery-procured Louisiana slaughterhouse monopoly that had been challenged by a group of butchers whose businesses were jeopardized. By that decision (called the Slaughter-House cases), one of the most important and beneficial products of the Civil War--a revolutionary constitutional provision intended to protect civil rights against oppression...