"Some groups of Afghans in Iran have particular reason to remain in Iran or to delay their repatriation. These include high ranking members of former communist regime, Islamis and Shiite clergymen."
"… owing to well founded fear of being persecuted for reasons of race, religion, nationality, membership of a particular social group or political opinion, is outside of the country of his nationality and is unable or, owing to such fear, is unwilling to avail himself for the protection of that country; …"