David Ng (right) and Amanda Furrow, Customs and Border Protection agricultural specialists, inspect wheat for insects and alien seeds at a port in Baltimore, Md. Dan Charles/NPR hide caption

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Hunting For Alien Bug And Seed Invaders At Baltimore's Port

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A worker unloads a truck full of Mexican limes at a citrus packing plant in La Ruana, in the state of Michoacan, Mexico. Dario Lopez-Mills/AP hide caption

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In Mexico And U.S., Lime Lovers Feel Squeezed By High Prices

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From the botanical to the economic, spring's iconic vegetable still harbors surprises. Sharon Mollerus/Flickr hide caption

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Top 5 Ways Asparagus, A Rite Of Spring, Can Still Surprise

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