ROME (Reuters) – Italy Tuesday seized Mafia-linked assets worth $1.9 billion -- the biggest mob haul ever -- in an operation revealing that the crime group was trying to "go green" by laundering money through alternative energy companies. Investigators said the assets included more than 40 companies, hundreds of parcels of land, buildings, factories, bank accounts, stocks, fast cars and luxury yachts. Most of the seized assets were located in Sicily, home of the Cosa Nostra, and in southern Calabria, home of its sister crime organization, the 'Ndrangheta. At the center of the investigation was Sicilian businessman Vito Nicastri, 54,...