Sy Hersh has written for the New Yorker that a military attack on Iran is in the planning stages. Here are a couple of excerpts:
One former defense official, who still deals with sensitive issues for the Bush Administration, told me that the military planning was premised on a belief that “a sustained bombing campaign in Iran will humiliate the religious leadership and lead the public to rise up and overthrow the government.” He added, “I was shocked when I heard it, and asked myself, ‘What are they smoking?’ ”
But those who are familiar with the Soviet bunker, according to the former senior intelligence official, “say ‘No way.’ You’ve got to know what’s underneath—to know which ventilator feeds people, or diesel generators, or which are false. And there’s a lot that we don’t know.” The lack of reliable intelligence leaves military planners, given the goal of totally destroying the sites, little choice but to consider the use of tactical nuclear weapons. “Every other option, in the view of the nuclear weaponeers, would leave a gap,” the former senior intelligence official said. “ ‘Decisive’ is the key word of the Air Force’s planning. It’s a tough decision. But we made it in Japan.”
Crooks and Liars also has a clip of Hersh talking on CNN about the article, and of Scott Ritter explaining why Iran wouldn't be close to developing nuclear weapons.
See also this piece by Christopher Hitchens.