American chicken

David Frum has a good column up talking about the odd importance of American chicken processing to the Brexit vote.

Are Australian meat chickens similarly bathed in chlorine (or whatever it is)? 

It's kind of remarkable how American food and food processing has a kind of poor reputation for all sorts of reasons - e coli outbreaks on salad veges seem so common; but then chicken meat seems to have the opposite issue with too much chemical treatment.