Airlines have sent messages of remembrance and condolence marking the anniversary of the September the eleventh hijackings.Eighteen years ago the World Trade Center was in ruins, thousands were dead or unaccounted for, and the way... " />

Six ways air travel has changed 18 years since September 11 2001

Airlines have sent messages of remembrance and condolence marking the anniversary of the September the eleventh hijackings.Eighteen years ago the World Trade Center was in ruins, thousands were dead or unaccounted for, and the way…