Palestinians bake bread in traditional mud ovens in the Rafah refugee camp in the southern Gaza Strip on March 25, 2012. Photo by Abed Rahim Khatib / Flash 90

Israel's prime Minister Benjamin Netanyahu speaks at a memorial ceremony honouring the late Israeli presidents and prime ministers, held at president Peres' residence in jerusalem. March 25, 2012. Photo by Miriam Alster/FLASH90

Nir Barkat rides his bicycle to work on the day that's named to promote eco friendly transportation. March 25 2012. Photo by Uri Lenz/Flash90

Nir Barkat rides his bicycle to work on the day that's named to promote eco friendly transportation. March 25 2012. Photo by Uri Lenz/Flash90

Ultra orthodox Jews walk among graves on the cemetery of Mount of Olives near Jerusalem's Old City. March 25, 2012. Photo by Uri Lenz/FLASH90

Ultra-Orthodox Jews fill water from a mountain spring in Jerusalem to be used to bake the matzot (unleavened bread) during the Maim Shelanu ceremony 25 March 2012. Religious Jews throughout the world eat matzos during the eight-day Pesach holiday (Passover), which begins at sunset , April 7, to commemorate the Israelites' exodus from Egypt some 3,500 years ago. Due to the haste with which the Jews left Egypt, the bread they had prepared for the journey did not have time to rise. To commemorate their ancestors' plight, the religious avoid eating leavened food products throughout Passover. photo by Uri Lenz/Flash 90