Now that President Trump has resurrected the hotly contested Keystone XL and Dakota Access Pipelines, here's what you need to know about their pasts — and their futures.

https://www.youtube.com/watch?v=fCPWjg-bXTYHost: Rachel BeckerDirector: Miriam Nielsen & Kimberly MasAudio: Andrew MarinoSpecial thanks to: Mark A. BarteauDirector, Energy InstituteDTE Energy Professor of Advanced Energy Research;Professor , Chemical EngineeringMonte Mills Assistant Professor & Co-Director,Margery Hunter Brown Indian Law Clinic

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