This is what they seem to never understand:
They fixed the price of bread for years. Before getting caught, if people had asked them, "are you fixing the price of bread?", they would have said No, and probably have acted insulted that they were even asked.
So now, if we ask them if they're fixing any other prices, they'll say No, and act insulted.
After last time, why should we believe anything they say at any point?