"Michelle Obama talks with Wal-mart executive Andrea Thomas as Stephen Roberts looks on during a tour the Walmart Neighborhood Market in Springfield, Mo. on Thursday, Feb. 28, 2013. Mrs. Obama was promoting her campaign against childhood obesity and highlit ""the groundbreaking steps"" the retailer has taken to make healthy food more affordable. (AP Photo/The Springfield News-Leader, Valerie Mosley) NO SALES"
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