The U.S. has long pursued what some call “diplomatic coercion” to persuade Iran to halt its nuclear program. Economic sanctions and international isolation are centerpieces of that strategy. Now there’s talk that an Israeli airstrike targeting Iran’s nuclear facilities could be imminent. The U.S. has urged Israel not to attack. President Obama reiterated yesterday that diplomacy remains the preferred solution. Analysts fear Israel’s threat will unite the Iranian people and work against the regime change in Tehran that many desire. Diane and her guests will talk about the likelihood of an Israeli attack and the possible consequences.