The USA has poor food hygiene standards, and has almost ten times the rate of food poisoning per 1000 population than the UK. Clorination of chicken won't harm you in the short term, but it hides low standards of poultry husbandry which also require regular use of antibiotics, a use no longer permitted here or in EU. Regular use of antibiotics as growth promoters, to keep low level infection of poorly raised birds at a minimum, is just about the best way to create antibiotic resistant bugs. As we are now close to bug resistance overcoming ALL antibiotics from over use, this affects your future health. You could die from a workshop cut pre antibiotics, and many did. This is just one example; there are other similar stories in the US livestock sector, that we definitely do not want to import, for public health reasons. Just in case you think I am a cuddly animal crusader, think again. I (a retired agronomist) usually buy eggs from caged hens. If the hens were that unhappy they'd go off lay and that affects profit so no one would use cages. "Free range" doesn't mean a wander round the farmyard; more like access to a small prison exercise yard. It certainly does not look like the pictures on the egg box! Animal welfare in the legislation sense relates to the practice of animal husbandry - the scientific techniques of animal production. Albeit that the RSPCA would investigate you for cruelty for too enthusiastically thrashing your stock with a large stick...