STORY: Crypto activity in Iran is booming. And U.S. investigators are reportedly examining whether specific crypto platforms have facilitated sanctions evasion by Iranian officials.Crypto transaction volumes hit an estimated $8-10 billion last year in the Islamic Republic.As both state-linked groups and retail investors turned to digital currencies.That was according to estimates from TRM Labs and Chainalysis.A Treasury spokesperson referred Reuters to a September statement announcing measures the department was taking against “shadow banking” networks supporting Iran.Iran’s mission at the UN did not respond to emailed requests for comment.The country has been…