Iranian-American

Four of the released, including Washington Post journalist Jason Rezaian, were dual Iranian-American citizens released as part of a U.S.-Iran prisoner exchange.
A fifth American, student Matthew Trevithick, was released separately.
The exchange comes as the U.S. lifts its sanctions as a part of its agreement with Iran to halt its nuclear development program.

(Image Credit: Zoeann Murphy/The Washington Post, via The New York Times)

Businessman Siamak Namazi has become the fourth American of Iranian descent detained in the country in recent years, according to Iranian media sources and personal associates.
What Namazi has been accused of has not been made public, but reports allege he, like the other three Iranian Americans arrested, came under suspicion of Iran’s security forces.
Dual citizens face vulnerability in Iran as the country does not recognize dual citizenship, making it easier for them to detain Iranian passport-holders without cause.

Outlas