""The magic number was 30," said Marc Garlasco, who was the Pentagon's chief of high-value targeting at the start of the war. "That means that if you hit 30 as the anticipated number of civilians killed, the airstrike had to go to Rumsfeld or Bush personally to sign off." If the expected number of civilian deaths was less than 30, however, neither the president nor the secretary of defense needed to know." (thanks Zakaria)