usdagov 16233494184 20150318-OSEC-RBN-5506
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Photo credit: © Nature and Science / Alamy / Afripics
License: Licensed
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Keywords: 107-, ag, building, day, dc, exhibit, farmher, guyler-alaniz, jamie, marji, nature, office, osec, roonm, science, secretary, tom, usda, vilsack, washington, whitten