Divided At United

A labor win pits union members against themselves

The International Association of Machinists and Aerospace Workers (IAM) scored labor's biggest organizing win in nearly two decades on July 17 when 18,000 ticket agents at UAL Corp.'s United Airlines Inc. voted to join the union. But the victory also has kicked off a series of internal battles between the IAM, the pilots' union, and the carrier, which is 55% owned by employees.

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