But there are no unique risks with the DAPL, so that's not a very good analogy.  Given that the DAPL is following the exact same route as an already existing pipeline, it would be more accurate to say they are building a newer, modern sewer next to an older, obsolete one.  The newer one does not pose any unique environmental or health hazards.  As has been noted, the pipeline is not going through their reservation because they are 70 miles downstream.  Their drinking water is already slated to be moved next year before construction on the DAPL even began.  

The Three Affiliated Tribes, on the other hand, support the protests for an entirely different reason.  In a bizarre twist, they oppose the path because it is NOT going through their reservation, and they want that oil revenue.  They wanted it rerouted to go through their reservation lol.  

There is nothing special about this pipeline, it's just a cause for environmentalists to use to push their anti-oil agenda.