Starbucks' union battle is getting aggressive and expensive, and Wall Street is backing away - CNBC

Starbucks shares have fallen 12% since Howard Schultz took the reins on April 4.

Michelle Eisen, a barista at the Buffalo, NY, Elmwood Starbucks location, the first Starbuck location to unionize, helps out the local Starbucks Workers United, employees of a local Starbucks, as the… [+7580 chars]

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