Big Mac attack: Protesters rally outside a McDonald's restaurant to demand higher wages and benefits. According to a study, more than half of non-managerial workers in the fast-food industry can't make ends meet without federal assistance. (Associated Press)
Christina Condori joins a crowd of low-income fast food workers and their supporters in protest on Thursday, Aug. 29, 2013, while picketing outside of the McDonald's restaurant in Memphis, Tenn. (AP Photo/The Commercial Appeal, Jim Weber)
** FILE ** Fast-food worker Michelle Osborn, 23, of Flint shouts out chants as she and a few dozen others strike outside of McDonald's on Wednesday, July 31, 2013, in Flint. (AP Photo/The Flint Journal, Jake May)
Demonstrators in support of fast food workers protest outside a McDonald's as they demand higher wages and the right to form a union without retaliation Monday, July 29, 2013, in New York's Union Square. Activists say hundreds of workers have walked off their jobs. They are demanding a minimum wage increase and calling for better benefits. (AP Photo/John Minchillo)
**FILE** McDonald's East All-American's Andrew Wiggins looks up during the first half of the McDonald's All-American boys basketball game in Chicago, Wednesday, April 3, 2013. (AP Photo/Nam Y. Huh)