Italy’s Ustica enigma: Can French files solve mystery crash blamed on stray missile?

France’s decision to share defence documents with the Italian judiciary has raised hopes of a breakthrough in investigations into the 1980 crash of a passenger jet near the island of Ustica, which a former Italian president claimed was mistakenly shot down by a French fighter jet. Sceptics caution that the files are unlikely to shed light on one of Italy’s most enduring mysteries, let alone reveal a culprit.