RENTON, WASH, Boeing announced to close the 737 and 757 jetliner assembly lines' factory in south Seattle suburb and relocate them to its huge widebody assembly plant in Everett, 30 miles to the north. This move could save the world's largest maker of commercial jets, an estimated $1 billion a year. The 8,000 people are employed at Seattle factory. Workers will be given the option of transferring...