Fortunately, Facebook only has to solve the much simpler problem of identifying clearly fake news. This is like determining that a site is a link farm, not tha

Fortunately, Facebook only has to solve the much simpler problem of identifying clearly fake news. This is like determining that a site is a link farm, not that it is a content farm. (I think Google has even made decent progress on the latter, harder problem, though I still see ask.com results sometimes.)