President Donald Trump flew home from a NATO summit in Turkey this week aboard a decades-old Air Force One, leaving behind the gleaming $400M (£302M) jet he had shown off only a day earlier and telling reporters he made the switch because he sits at the top of Iran's assassination list.
The move came as the United States and Iran again traded strikes, less than a day after American forces hit Iranian targets in retaliation for attacks on merchant shipping. It also renewed questions over an aircraft whose real cost has been disputed from the start.