The United States and Iran have a "mutual interest" in defeating the Islamic State group but the long-time foes are not cooperating to do so, Secretary of State John Kerry said Wednesday.
"They are totally opposed to ISIL and they are in fact taking on and fighting and eliminating ISIL members along the Iraqi border near Iran and have serious concerns about what that would do to the region," Kerry told lawmakers, referring to IS by another acronym.
"So we have at least a mutual interest, if not a cooperative effort."