BBC, 13 February 2016
Cuba returned to the United States an inert Hellfire missile that had been wrongly shipped to Havana in June 2014.
The missile, which did not contain explosives, had been shipped to Spain for a Nato training exercise, the Wall Street Journal said.
It was then taken to Germany and eventually to Charles de Gaulle Airport in Paris for onward delivery to Florida.
It was instead loaded on to an Air France flight to Havana.
The incident could have led to a serious loss of military technology, officials told the Wall Street Journal.
The whole affair has been embarrassing for the Americans, who have had to ask the Cubans if they could have their highly sensitive missile back, says the BBC's Will Grant in Havana.