I believe that the one on the right was the Chief judge of the palestinian national authority, Sheikh Taissir Tamimi. The one on the left was the Chief Rabbi of Israel, Yisrael Meir Lau. I think this is the 2000 interfaith conference in Jerusalem, the mural shows the wailing wall with al-aqsa mosque in the center and churches surrounding it. Probably showing interfaith harmony.
Wikipedia reports that in May 2009, Tamimi sparked international controversy by launching into a denunciation of Israel during an interfaith dialogue attended by Pope Benedict XVI in Jerusalem.