Demonstrators demanding an increase in worker wages march to a Jack in The Box fast food outlet in Oakland, California Dec 5, 2013. A group of about 150 protesters shut down the restaurant for more than half an hour as part of a daylong nationwide strike demanding a $15 dollar minimum wage. Fast-food workers in hundreds of US cities staged a day of rallies on Thursday to demand higher wages, saying the pay was too low to feed a family and forced most to accept public assistance. [Photo/Agencies]