SOMETIMES A UNION IS WISE to take a hard line. On Dec. 11, three weeks after 32,000 striking machinists rejected a deal signed by Boeing and union leaders, the aircraft maker came back with more. Workers will get an extra 6.5% in bonuses during the next two years, for a total increase of 14.5% in bonuses and 6% in wage hikes over four years. Boeing also agreed to shift less in health-care costs to employees. Plus, it will retrain employees whose jobs are subcontracted.

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