A shopper walks next to a Walmart store on Friday, Feb. 28, 2014, in Williston, N.D., near a sign advertising a $17 hourly wage for new employees — a rate higher than in many cities. (AP Photo/Martha Irvine) ** FILE **
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A shopper walks next to a Walmart store on Friday, Feb. 28, 2014, in Williston, N.D., near a sign advertising a $17 hourly wage for new employees — a rate higher than in many cities. (AP Photo/Martha Irvine) ** FILE **
