Is it coming?

Perhaps it is coming; perhaps not. But even a broken clock is right twice a day, and in addition to our broken clock of a President, others are also worried about Iranian nuclear ambitions. Sarkozy is among them. He foresees three (more or less obvious) alternative futures: 1) coordinated sanctions enforced by the great powers to successfully motivate Iranian compliance with the NPT; 2) we bomb Iran; 3) the Iranians develop the Bomb. He comments that the last alternative is "unacceptable" to him, and he describes both of the last two alternatives as "catastrophic." He is right. The first alternative would be the most palatable. But probably it will never be a reality. What course should we take if it is not?