[absolootezer0]

“Honey, do these turnips taste like oil?”

they've done this in detroit, plowed under a bunch of abandoned homes and buildings, and made "community gardens."
then after a bunch of these gardens have been planted and producing for a few years, someone realised that maybe they should test the soil.
big surprise, they found high concentrations of arsenic, lead, mercury, and other poisonous chemicals.

[JRios1968]

Reminds me of Moochelle’s “organic” garden at the White House: http://www.dailyfinance.com/2009/07/30/michelle-obamas-toxic-veggie-nightmare-white-house-organic-gar/

[Eric in the Ozarks]

Probably from the old Packard plant...

[Tatze]

That is rule number one in gardening, test the soil! There is no point in planting a garden in soil that is devoid of nutrients, or in this case, chock full of toxic chemicals.