An Israeli army artillery unit fires shells from near the Israel Gaza Strip border, southern Israel, Wednesday, Nov. 21, 2012. The Israeli military has been pounding Gaza with at least 30 strikes overnight, hitting government ministries, smuggling tunnels, a bunker's empty villa and a Hamas-linked media office. Meanwhile, U.S. Secretary of State Hillary Clinton is meeting with Israeli and Palestinian officials trying to help negotiate a truce between Israel and the militant Hamas, which controls the Gaza Strip. (AP Photo/Tsafrir Abayov)

Photo by: Tsafrir Abayov

An Israeli army artillery unit fires shells from near the Israel Gaza Strip border, southern Israel, Wednesday, Nov. 21, 2012. The Israeli military has been pounding Gaza with at least 30 strikes overnight, hitting government ministries, smuggling tunnels, a bunker's empty villa and a Hamas-linked media office. Meanwhile, U.S. Secretary of State Hillary Clinton is meeting with Israeli and Palestinian officials trying to help negotiate a truce between Israel and the militant Hamas, which controls the Gaza Strip. (AP Photo/Tsafrir Abayov)