A video exposing a flawed claim often abused in the sales pitch for promoting shale gas development across the world:“With a history of 60 years, after nearly a million wells drilled, there are no documented cases that hydraulic fracturing (fracking) has lead to the contamination of groundwater. ”Brought to you by the team behind the upcoming South African feature documentary, Unearthed, that is investigating natural gas development and the controversial method of extraction known as fracking from a global perspective. Should South Africa and other countries drill down?