re: Food irradiation
Irradiation does very little to food that cooking wouldn't do anyway.
The prime objection seems to be chemical changes (see also: cooking). Even the most rabid anti-irradiation types don't try to pretend there's any radiation hazard. As near as I can figure out, their objections are religious in nature.
Frankly, I wish more use was made of this process. A lot fewer people would be getting food poisoning.
