Hundreds of fast-food workers in Detroit are walking off the job today to demand a $15-an-hour wage and the right to unionize without intimidation, as such demands continue to spread to fast-food restaurants across the country. Employees from at least 60 stores, including McDonald’s, Wendy’s and Subway, are expected to take part in the action. Detroit is the fourth city to see such a strike over the past five weeks after workers in St. Louis walked off the job earlier this week, following similar actions in Chicago and New York.