Millions of Iranians take to the streets to defy a theocratic dictatorship that, among its other finer qualities, is a self-declared enemy of America and the tolerance and liberties it represents. The demonstrators are fighting on their own, but they await just a word that America is on their side.

And what do they hear from the president of the United States? Silence. Then, worse. Three days in, the president makes clear his policy: continued "dialogue" with their clerical masters.

Dialogue with a regime that is breaking heads, shooting demonstrators, expelling journalists, arresting activists. Engagement with -- which inevitably confers legitimacy upon -- leaders elected in a process that begins as a sham.