A mother embarks on a quest for answers. Read more
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6. Stray Burger
A mother embarks on a quest for answers.
7. Factor X
An organic farmer turned self-taught scientist investigates his own BSE theories.
8. Reaction
Campaigners claim cows have been unfairly blamed for BSE.
9. Cow Eats Man
One of the most disturbing BSE theories so far causes an international incident.
10. Zombie Deer
A new animal madness emerges in North America as history repeats.
