Israel warns that the clock is ticking, and that Iran is dangerously close to acquiring nuclear weapons. Is a long-feared military clash looking more and more likely?

Over the last several days, Israeli Prime Minister Benjamin Netanyahu has loudly and repeatedly urged that President Obama draw a “red line” that Iran’s nuclear program can’t cross, warning that without such a line, the Islamic Republic will likely be within reach of building its first atomic bomb in six or seven months. Obama administration officials say Netanyahu’s timetable is wrong, and that Tehran will need at least a year to gather the nuclear fuel it would need, and even longer to fit a warhead onto a missile. Is a violent showdown between Iran and Israel nearly here?