Americans are afraid of their food. And for good reason. In 2011, the deadliest food-borne illness outbreak in a century delivered killer listeria bacteria on innocuous cantaloupe never before suspected of carrying that pathogen. Nearly 50 million Americans will get food poisoning this year. Spoiled, doctored or infected food will send more than 100,000 people to the hospital. Three thousand will die. We expect, even assume, our government will protect...