BY MALCOLM BRIAN FOLEY White lynch mobs in America murdered at least 4,467 people between 1883 and 1941, hanging, burning, dismembering, garroting and blowtorching their victims. Their violence was widespread but not indiscriminate: About 3,300 of the lynched were black, according to the most recent count by sociologists Charles Seguin and David Rigby. The remaining dead were white, Mexican, of...