The furor over the proposed Islamic cultural center and mosque near ground zero keeps giving us new reasons for dismay. As politicians and commentators work themselves and viewers into a rage, others who should be standing up for freedom and tolerance tiptoe away.

To the growing pile of discouragement, add this: A New York Times poll of New York City residents that found that even this city, the country’s most diverse and cosmopolitan, is not immune to suspicion and to a sadly wary misunderstanding of Muslim-Americans.