A sign warns of oil pipeline construction ahead, in Johnsons Corner, North Dakota, September 6, 2016. (Photo by Robyn BECK / AFP) (Photo by ROBYN BECK/AFP via Getty Images)
A sign warns of oil pipeline construction ahead, in Johnsons Corner, North Dakota, September 6, 2016. (Photo by Robyn BECK / AFP) (Photo by ROBYN BECK/AFP via Getty Images)