Pakistani President Asif Ali Zardari (L) walks with Italian Prime Minister Silvio Berlusconi upon his arrival at Chigi Palace in Rome on September 30, 2009. Zardari is in Rome for a three-day official visit where he will have, on October 1, a private audience with pope Benedict XVI in Castel Gandolfo, the summer residence of the head of the Roman Catholic Church outside of Rome.