High-speed rail in Italy Rete Ferroviaria Italiana is working on the necessary updates to allow trains to speed up to . On May 28th, 2018, the Ministry for Infrastructures and Transportation and the National Association for Railway Safety decided not to run the 385 km/h tests required to allow commercial operation at 350 km/h, thus limiting the maximum commercial speed on the existing Italian high-speed lines to 300 km/h. . TGV trains also run on the Paris-Turin-Milan service, but do not use any high-speed line in Italy. The following high-speed rail lines are in use. The table shows minimum and maximum (depending on stops)
What Is and What Should Never Be and What Should Never Be" was performed live at Led Zeppelin concerts between 1969 and 1973. A live version taken from a performance at the Royal Albert Hall in 1970 can be seen on the "Led Zeppelin DVD". Another was included on disc two of the live triple album "How The West Was Won". Two more versions were included in BBC Sessions. 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