The content originally appeared on: CNN London (CNN Business)Norwegian police arrested seven Greenpeaceactivists on Monday after they chained themselves to a Russian oil tanker to try to prevent it docking at a port in Norway operated by Exxon. The Ust Luga - loaded with Russian jet fuel worth $116 million - was on its way to Slagentangen port, about 53 miles south of the capital Oslo, when activists chained themselves to its anchor, Aud Hegli Nordo, a spokesperson for Greenpeace […]