A winter wallop that delivered a blast of Arctic air to two-thirds of the United States last weekend brought with it power failures, partially due to snow, ice and falling trees or branches damaging power lines. At least 35 deaths were reported, including three brothers between the ages of 6 and 9 who fell through an iced-over pond in Texas, and two people who were run over by snowplows in Massachusetts and Ohio. The mega-storm reportedly caused blackouts to more than a million customers, especially in Tennessee, Mississippi and Louisiana. As of…