The destruction of a warning and control system aircraft in an Iranian attack on an American base in Saudi Arabia could impact the U.S. military’s ability to monitor threats from Iran — and raises questions around its preparedness for a “longer war,” experts say. Images verified by NBC News after they surfaced online appear to show much of the back end of E-3 Sentry jet was destroyed at the Prince Sultan Air Base, the tail lying at an angle on the ground surrounded by debris. Several American