Good idea. Unfortunately it would need a better name because people panic hearing the R word, perhaps Green Washed (tm) for your protection [washed in gamma rays, that is].
On a related note, there may also be a huge issue with Prion diseases in the food supply but the USDA is not testing extensively for it. We just don't know and it has a decades-long incubation period. Irradiation may not be an option.