Concerns flow over potential spills from Keystone pipeline LINCOLN, NE (NET Radio) - Recent oil pipeline spills in Utah and Michigan have raised questions over how TransCanada would respond to a spill in Nebraska. Critics of the proposed Keystone XL pipeline want a spill response plan to be made public. TransCanada says a plan is in place but many details cannot be shared openly. NET's Clay Masters reports. © Copyright 2013, NET Radio