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Planning to be in town for the 2013 Presidential Inauguration? USDA will open its doors on the National Mall for a USDA open house on Friday, January 18 from 10am - 2pm. The open house is a special opportunity to learn more about USDA’s important role in the lives of every American – helping to provide an abundant and safe food supply, natural resource conservation, groundbreaking research, clean energy, and much more.