Petula Dvorak: At Unite the Right, black-clad antifa again give peaceful protesters a bad name

The crowd in Washington's Lafayette Square on Sunday was buzzing and anxious, ready for the clash."No Nazis! No KKK! No Facist USA!" they chanted, to drum beats and that robotic, bullhorn crackle.But the Nazis? What Nazis?Hours into what was supposed to be the epic redux of last year's white nationalist/neo-Nazi/fascist/whining white male hate fest, even the Popsicle and water vendors seemed to outnumber the Unite the Right marchers."There they are! Nazis!" someone shouted, as a knot of about tw