During an interview for “This Week,” Defense Secretary Leon Panetta assured me that the United States has readied plans to carry out a military strike on Iran to prevent the regime from obtaining nuclear weapons if diplomacy fails to dissuade the country from its current path.“One of the things that we do at the Defense Department, Jake, is plan. And we have – we have plans to be able to implement any contingency we have to in order to defend ourselves,” Panetta said.Iran has enough uranium for 5 bombs: expertIran has significantly stepped up its output of low-enriched uranium and total production in the last five years would be enough for at least five nuclear weapons if refined much further, a U.S. security institute said.The Institute for Science and International Security (ISIS), a think-tank which tracks Iran's nuclear program closely, based the analysis on data in the latest report by the U.N. International Atomic Energy Agency (IAEA) which was issued on Friday.