U.S. President George W. Bush has given Israel an "amber light" to begin preparations for a military attack on Iran, a Pentagon official told The Sunday Times. According to the official, Amber means get on with your preparations, stand by for immediate attack and " tell us when you're ready." The official told the Times that Bush informed the Israeli government he would back an Israeli plan to strike Iran's main nuclear sites with long-range aerial weapons if diplomatic talks over Tehran's contentious atomic program broke down. 07/13/08