FDA researcher Dr. Sara Handy (foreground) grinds up pine nuts for DNA analysis. Hundreds of FDA scientists are working to develop the tools needed to keep bacterial and chemical contaminants out of the food supply, and to rapidly identify the disease-causing bacteria that do infiltrate foods and cause outbreaks of foodborne illnesses. Among them are the researchers at FDA's Center for Food Safety and Applied Nutrition (CFSAN), in College Park, Md.

This photo is free of all copyright restrictions and available for use and redistribution without permission. Credit to the U.S. Food and Drug Administration is appreciated but not required.

Privacy and use information: www.flickr.com/people/fdaphotos/