What you should know before you eat anything that you buy in a supermarket or from any non-local source.
I grew up on a farm 70 years ago. Nothing about any thing on that farm is recognizable in how the meat and other food items in the supermarket are currently produced. The abuse of animals and food plant workers is horrifying, but show in detail as well as how deadly the meat can be as demonstrated by the documentation of a boy dying after eating a hamburger due to ecoli in the meat, which apparently most meat has.