With dozens of protesters now killed in Iran as unrest sparked by the killing of 22-year-old Mahsa Amini at the hands of the country’s morality police engulfs the country, U.S. leadership finds itself in the familiar yet uncomfortable conundrum of how to respond. So far, the Biden administration is threading the needle ably. Over a decade ago, when President Barack Obama found himself watching mass protests from afar, his tendency towards dispassionate calculation left him taking a tepid stance, likely out of fear that a stronger stance would open the door for the Iranian leadership to paint t...