Collective bargaining among Vital Company and Workers Union (WU) reaches an impasse. WU calls an incursion against Vital to pressure it into making concessions. The unionised workers leave their jobs as well as refuse to work. The workers picket Vital's plant standing outside the facility with signs that criticize of its management's unfairness. Is this action legal? If therefore do the workers have the right to be paid while they are striking? Can non-workers participate in the picketing? Can co-workers reject to cross the picket line? Explain.