- Budget cuts make ex-Air Force One, aka SAM 26000, off limits
- Expert: It may be "the most important historical airplane in the world"
- SAM 26000 served as a stage for several major historic events
- It carried JFK's casket, hosted LBJ's swearing in, and ferried Nixon to China
(CNN)It may be the most historic plane in the world: Special Air Mission 26000, SAM for short. Not familiar? Maybe you know its nickname. Back in its heyday the sleek, blue and white airliner was called Air Force One.