TACOMA, Wash. — Two Puyallup men have been charged in attacks at four Pierce County power substations that left thousands in the dark on Christmas. Matthew Greenwood, 32, and Jeremy Crahan, 40, are charged with conspiracy to damage energy facilities and possession of an unregistered firearm, according to U.S. Attorney for the Western District of Washington, Nick Brown. The men were arrested on Saturday following an investigation by the FBI. The four substations that were vandalized were the Graham and Elk Plain substations operated by Tacoma Power and the Kapowsin and Hemlock substations operated by Puget Sound Energy. Power was...