I've been aware of the issues with meat production for a long time but in the US even going vegetarian / vegan doesn't help unless you can afford to shop in Whole Foods or similar.
My family in America are lucky, they buy their meat direct from the local ranchers half a cow at a time or something and frozen and they can afford to eat organic veg and fruit. They also eat mostly GF to avoid the GMO wheat.
I find it terrifying that it could end up here when the UK has worked so hard to raise standards.
I would not buy meat of an unknown origin. Ever.