[kwhitefoot]

But when you do find a dud in inspection of say a batch of resistors for television production you reject the entire batch or shipment; you don't ask the supplier politely if they might consider taking it back. In an import context that could mean anything from a single case to a 40ft container or even a whole shipload in the case of fish. That seems to be a big part of the problem; in food inspections the inspectors don't have the same degree of power and authority as quality control inspectors in a factory (well at least in well run factories).