South Dakota regulators say they could revoke Keystone permit after spill https://t.co/3sixoHdd4q pic.twitter.com/WW1kNM2gXm— Reuters (@Reuters) November 22, 2017
South Dakota regulators say they could revoke Keystone permit after spill https://t.co/3sixoHdd4q pic.twitter.com/WW1kNM2gXm