Local 15 of the United Food and Commercial Workers Union went on strike against Pine Tree Bakery when negotiations for a new contract reached an impasse. The bakery's organic, gluten free cookies made from the nest ingredients, including free range eggs and butter, are sold at Bubba's Quality Food Emporiums throughout Maine. The union posts members holding signs saying \"Don't Buy Pine Tree Cookies" and \"Don't Eat Scab Cookies\" in front of many of Bubba's Emporiums. As a result of the union actions, sales of Pine Tree Cookies fall faster than lightening down a greased pole, creating shock and dismay at Pine Tree. Pine Tree files an un- fair iabor practice charge against the union with the NLRB. Is the union's conduct legal under the NLRA? Explain your