Oil and water: The Line 3 debate

Line 3 construction barrels ahead, despite efforts to block it

People stand in a road as a woman in red yells at them from a distance.
Activist Tania Aubid uses a megaphone to ask to see permits for the construction of the Line 3 oil pipeline under the Mississippi River as Aitkin County sheriff's deputies speak with construction workers near Palisade, Minn., last week.
Evan Frost | MPR News