Eyewitness This: Kaiser Permanente's California workers vote to approve strike

Kaiser Permanente workers in California have voted overwhelmingly to approve a strike.

But that doesn't mean they will walk off the job.

The move gives union leaders the ability to call for a strike -- which helps in negotiations.

Employees have been working under an expired national contract since last September.

Union leaders have pointed at October as a possible time for a strike.
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