Panetta: Iran is just months away from a nuke - a red line for US and Israel : Pelley then asked: If the Israelis decide to launch a military strike to prevent that weapon from being built, what sort of complications does that raise for you? Panetta: We share the same common concern. The United States does not want Iran to develop a nuclear weapon. That's a red line for us and that's a red line, obviously, for the Israelis. If we have to do it we will deal with it. Asked if "it" included military steps, the US defense secretary replied: There are no options off the table. A nuclear weapon in Iran is unacceptable.