Ecologists said this week a police swoop on a group [Baikal Environmental Wave] denouncing radioactive pollution of Russia's unique Lake Baikal was part of a long-term security service campaign to crush environmental movement...the group...publicised business and government activities it said were harmful to the vast lake's environment...It also campaigned against a pipeline due to run to China through the area and backed by YUKOS, Russia's number two oil company, and the China National Petroleum Corp.