The Entebbe Option.
While no one in the Barack Obama administration knows whether Israel will strike Iran's nuclear program, America's war planners are preparing for a wide array of potential Israeli military options -- while also trying to limit the chances of the United States being drawn into a potentially bloody conflict in the Persian Gulf.
"U.S.-Israeli intelligence sharing on Iran has been extraordinary and unprecedented," a senior Pentagon war planner told me. "But when it comes to actually attacking Iran, what Israel won't tell us is what they plan to do, or how they plan to do it. It's their most closely guarded secret." Israel's refusal to share its plans has persisted despite repeated requests from Defense Secretary Leon Panetta, a senior Pentagon civilian said.
For the rest of the story: http://www.foreignpolicy.com/articles/2012/09/27/the_entebbe_option