Grist: One oil spill in his community was more than enough for Kalamazoo resident Christopher Wahmhoff. To protest Enbridges replacement of the pipeline that burst along a Michigan riverbank in 2010, Wahmhoff spent 10 hours of his 35th birthday inside the new pipe, slowing construction for a single day in June. Now Wahmhoff, a member of the Michigan Coalition Against Tar Sands, has been charged with two felonies and a misdemeanor, charges that could see him put behind bars for more than two years. It...