The "Arc of History" seems to be a spineless administration bending over backwards to accomodate dictatorial thugs

At least, that how I read The Rosett Report: "Please, No More 'Arc of History'":

And now, here we are, a year after the “re-election” of Mahmoud Ahmadinejad sparked those demonstrations calling for justice. Whatever the final shape of history’s arc, right now it is bending toward an Iranian nuclear bomb, and a rising Iranian-centered axis of trouble that extends not only to Syria, Venezuela and North Korea, but to Turkey and Brazil (with China and Russia arranging for their cut of the action). And what of the Iranian demonstrators who braved the beatings and bullets in the streets? After a year of terror, arrests and executions, there were still reports of sporadic demonstrations on Saturday, here and there in Iran. Try to imagine how much courage that must take. But the huge protests of last year have been smothered, thwarted, silenced. Obama talks about the increasing “isolation” of Iran’s regime, but — as I argue in a column on Iran’s Arc of Injustice – those who are genuinely suffering from isolation are not Iran’s rulers, but Iran’s dissidents.