A trial begins in federal court in Seattle Monday on whether the BNSF Railway Company can be held liable for claims that coal dust from its rail cars is causing water pollution. The suit was brought by seven environmental groups, including the Sierra Club and Puget Soundkeeper, in 2013. They say BNSF should be required to obtain a permit for coal dust pollution under the Clean Water Act. Lauren Goldberg is a staff attorney for Columbia Riverkeeper, one of the groups arguing the case. She says