Even with a bump to $14 an hour, Walmart workers won't make nearly as much as some activists say they should

• Walmart on Tuesday said it would raise its minimum wage to $14, affecting thousands of US workers.
• Activists have been pushing for a $15 minimum wage for over a decade, and now say at least $20 is needed.
• The federal minimum wage has been $7.25 since 2009, even as the cost of living has soared. 

Thousands of Walmart workers are set to see a pay raise this March as the company said Tuesday it will increase its minimum wage from $12 an hour to $14.