The Alaska pipeline traverses a wilderness lacking in people.  The environmental costs continue to mount from both ends.  The EXXON-VALDEX in one event literally destroyed an ecosystem for the short term and continues to destroy many species.  The pipeline was monitored throughout the building to require the safest possible construction by government oversight and environmental activists.  Government monitoring provided more jobs than the pipeline. Many spills including the explosion of one station occurred soon after startup and continue to occur as more workers are jettisoned to monitor.  One rifle slug punched a hole in it.  The DAPL is accessible throughout by roads and in highly populated areas.  Rich farmlands abound and all depend on water.  One spill could be disastrous as none of the safety factors built into the AK pipeline exist in lower 48 pipelines.  Multiple spills and blowouts have occurred as safety is secondary to profit.  ND oil is toxic and highly flammable.