On October 11th, 2016, five climate activists shut down every pipeline carrying tar sands crude from Canada to the United States. One of them, Michael Foster, is in the State Penitentiary in Bismark North Dakota. We talk to the other four. They will give the defense of climate necessity that so far no court has allowed them to tell a jury of their peers. You hear Leonard Higgins, Emily Johnston, Ken Ward and Annette Klapstein in exclusive Radio Ecoshock interviews.