Javier Cobo knows that people don't always re-enter the workforce by choice.
Over the past year, more jobs have been created in the middle of the pay scale.
An increasing number of American workers are being asked to sign such deals.
Retail sales stalled last month. They're at their weakest reading since January.
A few bucks an hour more for low-wage workers can raise prices, but also boost economic growth for the country overall.
Protests put Walmart in the public eye, and legal strategy targets Walmart as industry giant.
Walmart's flexible supply chain depends on low-wage "permatemp" workers.
