A 250,000-euro security system including gates and cameras is planned for Pisa's historic leaning tower and its adjacent buildings. Italian authorities fear that a terrorist attack could send the 13th century tower toppling. But historians are skeptical.
"If al-Qaeda want to carry out an attack, they will go ahead with it. It won't be two things put up in front of it [the tower] that will stop them," said Antonio Paolucci, Regional Superintendent for the Artistic and Historical Heritage of Tuscany.
The tower, as well as other sites sacred to the art world, have been planned targets in the past.