FILE PHOTO: Blindfolded U.S. hostages and their Iranian captors outside the U.S. embassy in Tehran, Iran, 1979. U.S. Army/Handout via REUTERS/File Photo ATTENTION EDITORS - THIS IMAGE WAS PROVIDED BY A THIRD PARTY PLEASE SEARCH  "FROM THE FILES -  IRAN MARKS 40TH ANNIVERSARY OF ISLAMIC REVOLUTION" FOR ALL PICTURES
Blindfolded US hostages and their Iranian captors outside the US embassy in Tehran in 1979. US Army via Reuters

For US embassy hostages, Iran's revolutionary fervour evokes dark memories