JERUSALEM, ISRAEL - NOVEMBER 21: (ISRAEL OUT) Prime Minister Benjamin Netanyahu looks on during a joint press conference with Foreign Minister Avigdor Liberman and Defence Minister Ehud Barak (not pictured),  on November 21, 2012 in Jerusalem, Israel.  An official ceasfire started at 9pm local time between Israel and the Palestinian Hamas movement after eight days of conflict resulting in the deaths of over 140 Palestinians, five Israelis and many hundreds injured.  (Photo by Lior Mizrahi/Getty Images)