Emanuele Fiano, a Jewish former MP for the centre-left Democratic Party (PD) who was shouted down and prevented from speaking at a debate at Venice's Cà Foscari University by a group of pro-Palestinian protesters on Monday last week, returned to the institute Tuesday and completed his address accompanied by Higher Education Minister Anna Maria Bernini.     Fiano, the president of the Left for Israel association whose father was the only one of his family to return from Auschwitz, and who was