"FILE - In this March 11, 2013 file photo is a sign reading ""Stop the Transcanada Pipeline"" placed in a field near Bradshaw, Neb. Even if the Republican-led Congress approves the Keystone XL pipeline, not a drop of oil will flow through the system until Nebraska signs off on its route. The routing process is still before the state Supreme Court, and depending on how justices rule, it could be months or longer before any construction in Nebraska begins. (AP Photo/Nati Harnik, File)"
{}