Christy Williams stood outside the Boeing facility in St. Louis for hours on Tuesday next to her handwritten sign declaring: “We aren’t building toasters!” For the last three years, Williams and her son have engineered F-15 fighter jets at Boeing in the St.

By early this morning, a few dozen had gathered outside the company's offices north of the airport, marching with picket signs.

Boeing (NYSE:BA) is confronting a fresh labor disruption as about 3,200 unionized workers at its defense facilities in the St. Louis region walked off the job after rejecting the company's latest contract offer.