A pile of tomatoes are seen on display at a wholesale produce market in Washington, June 12, 2008. Representatives from the U.S. Food and Drug Administration and the Centers for Disease Control and Prevention (CDC) said they are continuing to search for the source of the Salmonella outbreak, after reports of people falling ill from eating Salmonella-tainted tomatoes and that they now have 167 reported cases from 17 states. REUTERS/Jim Young (UNITED STATES)