"Store brand" products are an IMO egregious case of this. Often it's utterly impossible to tell where a product has been manufcatured (as in: plant or factory

"Store brand" products are an IMO egregious case of this. Often it's utterly impossible to tell where a product has been manufcatured (as in: plant or factory), and somewhat ironically, correlated product recalls are often the only way of establishing where a store sources its "in house" brands. The fact is that "in house" isn't, and what both the merchant and manufacturer are in fact preserving is the market ignorance of who the ultimate producer is.