Carabinieri (Italian paramilitary police) car's blue lights flash in front of St. Peter's Basilica, in Rome, Friday, Dec. 4, 2015. Extra pilgrims and tourists coming for the Holy Year, which runs through Nov. 20, 2016, pose challenging logistics for both Vatican and Italian security forces. Italy's top armed forces official, Gen. Claudio Graziano said as many as 6,300 troops will be deployed in Rome and other Italian cities. (AP Photo/Gregorio Borgia), APTOPIX