Today eight people from a group called Tar Sands Blockade climbed 80 feet into trees in the path of Keystone XL construction outside Winnsboro, Texas. Work can’t proceed until the tree-sitters come down so TransCanada can cut down hundreds of trees to make way for the tar sands pipeline. WBAI’s Andrea Sears spoke with Ron Seifert, a spokesperson for the Tar Sands Blockade.