Does this story line sound familiar? The vice president of the United States gives a major speech focused on the threat from an oil-rich nation in the Middle East. The U.S. secretary of state tells congress that the same nation is our most serious global challenge. The secretary of defense calls that nation the leading supporter of global terrorism. The president blames it for attacks on U.S. troops. The intelligence agencies say the nuclear threat from this nation is 10 years away, but the director of intelligence paints a more ominous picture. A new U.S. national security strategy trumpets preemptive attacks and highlights the country as a major threat. And neoconservatives beat the war drums, as the cable media banner their stories with words like “countdown” and “showdown.”

The nation making headlines today, of course, is Iran, not Iraq. But the parallels are striking. Three years after senior administration officials systematically misled the nation into a disastrous war, they could well be trying to do it again.

Nothing is clear, yet. For months, I have told interviewers that no senior political or military official was seriously considering a military attack on Iran. In the last few weeks, I have changed my view. In part, this shift was triggered by colleagues with close ties to the Pentagon and the executive branch who have convinced me that some senior officials have already made up their minds: They want to hit Iran.