A Palestinian security force officer carries a wounded girl into the emergency room at Shifa hospital in Gaza City, Saturday, Dec. 27, 2008. Israeli warplanes retaliating for rocket fire from Gaza pounded dozens of security compounds across the Hamas-ruled territory in unprecedented waves of air strikes Saturday, killing at least 155 and wounding more than 310 in the bloodiest day in Gaza in decades.(AP Photo/Majed Hamdan)