bTB in slurry

For many years, badger protectors have been wondering about the potential of spreading bTB in slurry.  This Farming Today programme seems to confirm our fears that bTB can be spread in slurry over a wide area.  This, in turn, can get into the soil.  It is already known that earthworms can carry bTB, and of course earthworms form the largest part of badgers diet.  Listen from 9 minutes in.