What they really seem to want is to irradiate every bit of food we eat so no cost or effort at all has to be expended to PREVENT contamination. They seem to be perfectly happy with meat coated with feces, but that's okay because the irradiation kills the bacteria. But the meat is STILL contaminated with feces, but now it's SAFE feces.
With all due respect, Sue, you're missing the point. The article states that organic vegetables may be more prone to contamination because it is *purposely* covered in feces in the form of organic manure ferilizer.
Radiation pasturization can work wonders, but it is not terribly economical. The cost might be offset slightly by longer shelf life, less waste, less liability and higher value to the few consumers who are not superstitious. However, the physical and regulatory overhead to run an irradiation facility is quite a burden.