Security precautions for Pope Benedict XVI, which are the same for visiting heads of state, will also reportedly be taken up by Israel's intelligence service the Mossad. The Italian daily La Republica has reported that Mossad agents and Italian and Vatican security and intelligence officers have arrived in Turkey to help Turkish security units. La Republica also reported that security units in Istanbul arrested a group in preparation for an attack on the pope a few weeks ago in Istanbul. However, no detailed information was given on the identity and nationality of the suspects. The paper also wrote that Cardinal Walter Kasper, the head of the Council for Promoting Christian Unity, who is visiting Turkey with the pope, might also have been chosen as a possible a target, reports Anadolu News Agency.