Starbucks workers have expanded their strike to four more US cities, including New York, the union representing over 10,000 baristas said late on Saturday.The five-day strike, which began on Friday and initially closed Starbucks cafes in Los Angeles, Chicago and Seattle, has added locations in New Jersey, New York, Philadelphia and St. Louis, Workers United said in a statement. It did not specify in what New Jersey city the walkout was occurring.Starbucks said the disruptions from the strike have no signifi ...