The European Union's intergovernmental conference to be held in Rome on 4 Oct is causing concern for its high-risk potential of civil unrest. Heads of state and prime ministers representing 28 countries will be in the city to re-examine the draft of the new EU constitution, but leaders of various so-called "no-global" movements have promised to block the arrival of the delegations in Rome's southern EUR district where the conference will be held. Police fear the presence of the more extreme Black Bloc factions. The Via Veneto area in the city's centre, where the delegations will be staying, will be completely closed to the public from the evening of Oct 3, and 10,000 police will be deployed citywide to maintain law and order. Francesco Caruso, one of Italy's main anti-globalisation leaders, has already apologised for any problems to residents.