Montana Judge Revokes Permit on Controversial Keystone XL Pipeline Listen Download Embed Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email Opponents of the Keystone XL pipeline demonstrate on the Dodge Street pedestrian bridge during rush hour in Omaha, Neb., Wednesday, Nov. 1, 2017. ( AP ) Produced by Lydia McMullen-Laird Hosted by Lizzie O' Leary Produced by GBH