President Hassan Rouhani’s charm offensive has made many – though not all – cautiously optimistic of a new chapter in Iran’s relations with the West.

But experts agree that a breakthrough in negotiations over Iran’s nuclear program will not automatically translate into similar success with North Korea – a nation with whom Iran has frequently been linked.

There are reasons for this connection, extending beyond former U.S. President George W. Bush’s labeling them as part of an “Axis of Evil” in 2002. Neither the North nor Iran has official relations with the United States. Both have deeply adversarial relations with