Italy per 1,000 people) and 4,015,000 goods vehicles circulated on the national road network. The national railway network, state-owned and operated by Rete Ferroviaria Italiana, in 2008 totalled of which is electrified, and on which 4,802 locomotives and railcars run. The national inland waterways network comprised of navigable rivers and channels in 2002. In 2004 there were approximately 30 main airports, including the two hubs of Malpensa International in Milan and Leonardo da Vinci International in Rome, and 43 major seaports, including the seaport of Genoa, the country's largest and second largest in the Mediterranean Sea. In 2005 Italy maintained a
The Holocaust in Italy history at the Ca' Foscari University of Venice, titled "The Italian Executioners: The Genocide of the Jews of Italy" examined the role of Italians in the genocide and found half of the Italian Jews killed in the Holocaust were arrested by Italians and not Germans. Many of these arrests could only be carried out because of tip-offs by civilians. Sullam argued that Italy ignored what he called its "era of the executioner", rehabilitated Italian participants in the Holocaust through a 1946 amnesty, and continued to focus on its role as saviours of the Jews rather than to reflect on the