Alisa Harrison has worked tirelessly the last two weeks to spread the message that bovine spongiform encephalopathy, or mad cow disease, is not a risk to American consumers. As spokeswoman for Agriculture Secretary Ann M. Veneman, Ms. Harrison has helped guide news coverage of the mad cow crisis, issuing statements, managing press conferences and reassuring the world that American beef is safe. For her, it's a familiar message. Before joining the department, Ms. Harrison was director of public relations for the National Cattlemen's Beef Association, the beef industry's largest trade group, where she battled government food safety efforts, criticized Oprah Winfrey for raising health questions about American hamburgers, and sent out press releases with titles like "Mad Cow Disease Not a Problem in the U.S." Eric Schlosser, Auther of Fast Food Nation coments on the USDA's handling of mad cow disease. And I'm still not eating beef. The Cow Jumped Over the U.S.D.A. | 
