The Sunnis have long been representative of the Muslim extremist element to America yet we’re constantly told by the media and politicians that the Shiites of Iran are the #1 enemy. Have we forgotten that the Sunnies from Saudi Arabia attacked us on 9-11 and attacked us other times? The Saudis have their hooks in our politicians. Mark Steyn had a discussion on this relationship. Given the chance the Iranians would wipe out ISIS.
The House of Saud gave money to our political ‘elites’ in the past - - that’s my guess. Maybe helped with oil prices - who knows? I wouldn’t want to say Iranians are smarter - as that would be unkind. That said I don’t trust Iranian leaders... waaaay too much corruption.