Michelle on a mission

Updated: Mar 01, 2013 16:03 IST

First lady Michelle Obama speaks at a Walmart Neighborhood Market in Springfield. Obama was promoting her campaign against childhood obesity and highlight
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First lady Michelle Obama speaks at a Walmart Neighborhood Market in Springfield. Obama was promoting her campaign against childhood obesity and highlight "the groundbreaking steps” the retailer has taken to make healthy food more affordable. AP/Orlin Wagner

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