A few years ago, in the course of researching her dissertation on changing sexual mores in the Islamic Republic of Iran, a young Iranian-American anthropologist named Pardis Mahdavi stopped by the Ministry of Education in Tehran to inquire about the country’s sex education curriculum. Another visitor happened to be there. An older woman named Mrs. Erami, she was covered head to toe in the most conservative form of Iranian hijab: the tentlike black chador, held in place by the wearer’s teeth such that it obscures half the face. Under her chador, Mrs. Erami wore another voluminous layer of hijab, including a hoodlike head scarf and a long, loose coat
