Barricades are the face of resistance…as old as the Canut Weavers’ strike against early mechanized weaving looms in Lyon, France in 1837, and as recent and iconic as the Flint sit-down strike at Ford Motor in 1936. Every job action, every strike, every barricade has been, in the long tumultuous history of labor, an act of resistance, and a desperate attempt to right some economic or social injustice…