Unidad de Gestión Operativa Ferroviaria de Emergencia Unidad de Gestión Operativa Ferroviaria de Emergencia Unidad de Gestión Operativa Ferroviaria de Emergencia (UGOFE) was a temporary consortium of Argentine companies formed on 7 January 2005 by Ferrovías, Metrovías and Trenes de Buenos Aires to take over the running of commuter railway services in Buenos Aires after concessions granted to Metropolitano in 1994 for the operation of these services were revoked. Metropolitano, a company formed in 1994 to take over rail concessions granted by the Argentine government, as part of railway privatisation during the presidency of Carlos Menem, operated commuter rail services over Línea San Martín, Línea Roca and
What Is and What Should Never Be What Is and What Should Never Be "What Is and What Should Never Be" is a song by English rock band Led Zeppelin. It was written by Jimmy Page and Robert Plant and was included as the second track on "Led Zeppelin II" (1969). "What is and What Should Never Be" was one of the first songs on which Page used his soon-to-become trademark Gibson Les Paul for recording. The production makes liberal use of stereo as the guitars pan back and forth between channels. Robert Plant's vocals were phased during the verses. Record producer Rick Rubin has remarked, "The