On Thursday, Southern California Walmart workers staged a walkout against Walmart in the United States. Several dozen workers said that they were striking against the retaliation workers who spoke up about working conditions faced from managers, as well as low wages and short hours. The walkout happened three weeks after warehouse workers walked out in California and Illinois to protest conditions in warehouses that serve Walmart.
See "Walmart Workers Stage a Walkout in California", Steven Greenhouse, The New York Times, October 4, 2012