Iran just exposed one of the U.S. military’s most dangerous and overlooked vulnerabilities: five U.S. Air Force refueling tankers were struck while parked in the open at Prince Sultan Air Base in Saudi Arabia. The losses, paired with a separate mid-air collision over Iraq that killed six KC-135 crew members, have triggered alarm bells inside the Pentagon about a tanker fleet that is dangerously exposed and stretched far too thin.
The U.S. Air Fo…