Costa Concordia embarks on its last voyage: Italian cruise liner finally heads home to Genoa where it will be broken up for scrap Four tugboats and several escort ships were lined up to tow the 114,000-tonne vessel It is being taken to a port near Genoa in northern Italy where it is due to arrive on Sunday The once-gleaming white luxury liner sank off the holiday island of Giglio in January 2012.....