Starbucks' worker strike expands to a dozen major U.S. cities after employees say the chain offered an 'insulting economic package'

Starbucks worker with megaphone (Credit: Getty Images—AUL LOEB/AFP)

• Starbucks union workers are striking in 12 major cities across the U.S. in what one employee calls a "last resort" to get the coffee chain to reach a contract with better wages and scheduling.

Today might not be the best day to stop at Starbucks to fuel up for your last-minute holiday shopping.