Few Italians symbolise the nation’s never-ending struggle against the mafia better than Rita Borsellino, the sister of a courageous prosecutor who was murdered by Cosa Nostra assassins in July 1992.

Now Ms Borsellino, 60, is running for election as governor of Sicily, where her brother Paolo - one of Italy’s leading anti-mafia magistrates - and five bodyguards were blown up in one of the worst mafia atrocities of the 20th century.