US President Donald Trump returned from the NATO summit in Ankara aboard the older Air Force One after a brief stop at RAF Mildenhall in the UK, amid heightened tensions with Iran and growing security concerns surrounding his newly acquired aircraft.According to The New York Times, Trump switched from the new Boeing 747-8, gifted by Qatar, to the older presidential aircraft on the advice of the US Secret Service after fighting between the US and Iran resumed. The report said the move was a precautionary measure rather than a response to a specific threat, although officials acknowledged that the new aircraft does not yet have all the security features fitted to the existing Air Force One fleet.The White House rejected suggestions that the new aircraft was unsafe. Communications Director St