A Department of Energy electrical engineer has been arrested on charges of providing support to the Iranian-backed Houthi rebels, including by buying materials for homemade explosives and drones and traveling to Yemen, the Justice Department said Thursday. Ashton Hamed Ellaboudy, 51, of Richland, Washington, was arrested Thursday and is due to make his first court appearance Friday. Court records do not list an attorney available to speak on his behalf. The FBI says Ellaboudy had a goal of helping the Houthis improve their communications capabilities and traveled last September to Yemen, where the Houthis and Saudi-backed government forces are now...