Energy from supermarket waste

CNN reports on how supermarket waste can be either turned into prepared foods or used in anaerobic digesters to produce energy. While large donations to food banks do occur, one recipient supposes that they receive about 1% of all supermarket waste. It's hard to know exactly what's going on since the major chains have a code of silence, refusing to speak to the media (or even to be interviewed by Karen and Nia for a class project). Corporate waste is potentially a huge resource, though as with most resources it requires some investment to use.