The campaign is pushing car-wash owners to sign accords that guarantee minimum wage, ensure worker safety and give meal and rest breaks.

WSJ: Unions Seize on Immigration Debate

Unison also wanted a guarantee that the Living Wage would automatically increase across all Scotland's Councils.

BBC: Unison to ballot over 1% pay offer

If there had never been a minimum-wage law passed -- if, as in the years before 1938, Americans today could be paid as little as employers could get away with -- and if, in 2013, someone in Congress proposed the first law ever that would guarantee workers a minimum wage.

CNN: What if there were no minimum wage?

With employers like Liu calling for a lower minimum wage, South Africa finds itself in a situation where it is desperate to create work, but unable to guarantee what the government considers decent pay.

CNN: STORY HIGHLIGHTS