Keystone XL pipeline sit-in protest, Moscow, Idaho style, as an ExxonMobil/Imperial Oil tar sands megaload rolls though town on August 25-26, 2011: Thanks, Brett! (Moscow-Pullman Daily News photo)

Moscow, Idaho, crowds expand around sitting and standing Wild Idaho Rising Tide protesters who stopped an ExxonMobil/Imperial Oil tar sands shipment on August 25-26, 2011 (Tom Hansen photo).

About 150 people gather around Wild Idaho Rising Tide protesters during their August 25-26, 2011, demonstration of peaceful civil disobedience against ExxonMobil/Imperial Oil tars sands transports permitted by the Idaho Transportation Department through Moscow, Idaho (Tom Hansen photo).