It was the US Marine Corps, not the US Air Force, who misplaced this one.
The “public’s help” part is obvious. Did you see it go by, or see a fiery crash of something falling from the sky, or encounter some fresh wreckage while bushwacking someplace or plowing your farm? If so, call 1-800-My-Lost-Jet.
FYI, here’s an irreverent non-FQ thread on the same situation: