Before they were enemies, the US and Iran used to be an item. In fact, the US helped start Iran's nuclear program. But, like any failed relationship, it’s not just one thing that led to the break-up. Years of misinformation, politics, greed, reality TV and some real security interests on both sides all caused friction. On this bonus episode from The World's partners at the Things That Go Boom podcast, host Laicie Heeley has the story of how the US and Iran broke up — because you can’t truly understand the Iran nuclear deal without first understanding why the US and Iran have bad blood.