I love the annual Halloween episode on The Simpsons. This year in addition to being funny The Simpson creators injected some life saving education into the laughs. This is a good thing as many people would not otherwise learnof this issue.
One of the big contributors to Mad Cow Disease which can kill you or leave you crippled, is a practice by the meat industry of recycling bits of cows back into cattle feed. Feeding cows to cows.
The only reason this is done is to increase profits, slightly.