The union representing 4,660 Boeing Co. employees in Wichita, Kan., plans to picket the company at various sites around the country, including the Renton headquarters of Boeing Commercial Airplanes Group. The Society of Professional Engineering Employees in Aerospace said its members also will picket Boeing's Chicago headquarters, and the Toronto, Ontario, headquarters of Onex Corp., which is in the process of buying the Wichita facility. The union said more than 1,100 employees have been laid off by Boeing and have been told they will not have jobs with Onex when the sale closes on June 16. Meanwhile, the International Brotherhood...