NEW YORK — Six Bahá’í leaders in Iran were arrested and taken to the notorious Evin prison yesterday in a sweep that is ominously similar to episodes in the 1980s when scores of Iranian Bahá’í leaders were summarily rounded up and killed. The six men and women, all members of the national-level group that helped see to the minimum needs of Bahá’ís in Iran, were in their homes Wednesday morning when government intelligence agents entered and spent up to five hours searching each home, before taking them away.The seventh member of the national coordinating group was arrested in early March...