sentences:  Mexico privatized its freight rail service with the dissolution of the former Ferrocarriles Nacionales de México freight service in 1998.There is a Mexico City Metro and a Monterrey Metro as well as light rail systems operating in Mexico City (Xochimilco Light Rail), and Guadalajara (Guadalajara light rail system).The Secretariat of Communications and Transport of Mexico has proposed a high-speed rail link that would transport passengers from Mexico City to Guadalajara, Jalisco, with stops in the cities of Querétaro, Guanajuato, Leon and Irapuato; and a connected line running from the port city of Manzanillo to Aguascalientes.