Food safety : current challenges and new ideas to safeguard consumers : hearing of the Committee on Health, Education, Labor, and Pensions, United States Senate, One Hundred Ninth Congress, second session, on examining current challenges and new ideas to safeguard consumers relating to food safety, focusing on foodborne illness in general and the response to the recent outbreak of E. coli infections associated with fresh spinach, November 15, 2006. (U.S. G.P.O. :, 2007)