Purpose?[edit source]

The article needs to answer the question: Why grow food underground? --Chriswaterguy 00:52, 20 March 2013 (PDT)

it reads to me like a highly illuminated Cannabis farm. Highly unlikely that anyone would go to the expense of artificial lighting for anything else, as far as I can see. Joeturner 01:18, 20 March 2013 (PDT)
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