Hunt Kennels security encouraged to stop cameras!

Andrew Osborne, new to the job of being Chairman of the Masters of Foxhounds Association seems to think that security procedures can stop someone from filming at a kennels. This idea is absurd, a handheld camera can be left to record for over a week and film at distances of several hundred meters, all it takes is the right terrain and angle and it becomes obvious that most hunt kennels are vulnerable to being filmed.
What have they got to hide?