Safeway

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A Safeway Sampling Pavilion will provide free food samples and 18 food vendors will be set up around the site on Saturday at the Safeway National Capital Barbecue Battle in the District.

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President Barack Obama arrives to speak about how having a fuel-efficient truck fleet will boost the economy and help combat climate change, Tuesday, Feb. 18, 2014, at the Safeway Distribution Center in Upper Marlboro, Md. (AP Photo/Jacquelyn Martin)

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President Barack Obama speaks about how having a fuel-efficient truck fleet can boost the economy and help combat climate change, Tuesday, Feb. 18, 2014, at the Safeway Distribution Center in Upper Marlboro, Md. (AP Photo/Jacquelyn Martin)

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President Barack Obama speaks about how having a fuel-efficient truck fleet can boost the economy and help combat climate change, Tuesday, Feb. 18, 2014, at the Safeway Distribution Center in Upper Marlboro, Md. (AP Photo/Jacquelyn Martin)

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With a map of the United States on a truck in the background, President Barack Obama speaks about how having a fuel-efficient truck fleet can boost the economy and help combat climate change, Tuesday, Feb. 18, 2014, at the Safeway Distribution Center in Upper Marlboro, Md. (AP Photo/Jacquelyn Martin)