Ref the liquid explosive - they did say that an electrical detonator was required, I think. Didn't show it, perhaps for obvious reasons, IMHO. I'm no expert but don't believe this kind of stuff is rocket science. Well, okay, technically it is rocket science but primary school rocket science.
For me the program hit the nail on the head in a lot of respects.
Number of shops, screw the operator for every penny, security manning levels, routing through the terminals to maximise "retail opportunities", customer satisfaction levels, etc.