ST. LOUIS — The union representing St. Louis-area Boeing workers says its members have authorized a strike if contract negotiations fail with the company. The International Association of Machinists and Aerospace Workers (IAM) said a Sunday vote to green-light a possible strike had 99% support. "Boeing Defense makes billions from the hands-on talent of our members," Sam Cicinelli, general vice president of IAM's Midwest territory, said in a news release Monday. "It’s time those same hands are