On irradiation, from the Wall Street Journal (subscription required):

The technology is known as food "irradiation," a process that propels gamma rays into meat, poultry and produce in order to kill most insects and bacteria. It is similar to milk pasteurization, and it's a shame some food marketer didn't call it that from the beginning because its safety and health benefits are well established. The American Medical Association, the Centers for Disease Control (CDC), the Food and Drug Administration and the World Health Organization have all certified that a big reduction in disease could result from irradiating foods.

Says Michael Osterholm, director of the Center for Infectious Disease Research at the University of Minnesota: "If even 50% of meat and poultry consumed in the United States were irradiated, the potential impact on foodborne disease would be a reduction in 900,000 cases, and 350 deaths." A 2005 CDC assessment agrees: "Food irradiation is a logical next step to reducing the burden of food borne diseases in the United States."

Eric Schlosser, author of the best-selling "Fast Food Nation," also disparages irradiation as an "exotic technology" developed "while conducting research for the Star Wars antimissile program." Scary.

None of these mythologies has ever been substantiated by science. The Centers for Disease Control concluded its investigation by noting: "An overwhelming body of scientific evidence demonstrates that irradiation does not harm the nutritional value of food, nor does it make the food unsafe to eat." According to Paisan Loaharanu, a former director at the Food and Agriculture Organization of the United Nations, "The safety of irradiated foods is well established through many toxicological studies. . . . No other food technology has gone through more safety tests than food irradiation."

So what's stopping irradiation? The answer is a combination of political pressure, media scare tactics and bureaucratic and industry timidity. And it starts with organic food groups and such left-wing pressure groups as Public Citizen that have engaged in a fright campaign to persuade Americans that irradiation causes cancer and disease. Something called the Stop Food Irradiation Project tells consumers to tell grocers not to carry irradiated foods.