As I understand the chlorinated chicken thing, it's not the actual chlorine wash that is considered harmful, but that standards for rearing chickens are lower in the US so disinfecting the carcasses is considered necessary.
That said, if people think that chicken reared in places like Romania is done to the same standards as here then they are frankly deluded, and remember there is no requirement for it to be labelled as from Romania just the EU.
We import a lot of chicken from Thailand as well, if you look at the ingredients on a ready meal or chicken sandwich odds are the chicken is from Thailand. I wouldn't fancy looking around a Thai chicken farm to be honest...
All said and done if American chicken is clearly labelled, let the consumer decide what they want to buy and I don't believe that it is massively cheaper than UK chicken anyway especially with transport costs to consider.
American people appear to be well fed!