AC 70 - could be. Major investigations ongoing into whodunit. At least a dozen fires in a 3-4 hour period last Thursday, all along a short stretch of I90 on both sides of the interstate. All they´re saying for sure is ´human caused´ right now, could be accidental (a truck dragging a chain, causing sparks, but seems unlikely on BOTH sides of the Interstate)

RBH - the report on the news said these BPA lines supply power to Portland and Seattle, specifically mentioned. My guess is the power to these large cities probably comes from many places based upon needs and availability. Columbia River dams surely provide much of Portland´s power also. Hopefully, other sources will come online if this major line is interrupted, but there is much demand for power everywhere this summer due to the extreme heat.