Research suggests [...] that faith in diversity is being sorely tested. New studies confirm earlier evidence that, at least in the short- to mid-term, diversity weakens civic ties, fostering mutual mistrust and detachment. Beneath all the ''happy talk'' about diversity, many Americans harbor a deep ambivalence about where it will lead.
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The [research] is complemented by a massive national study by Harvard sociologist Robert Putnam, who reports that in the face of large-scale immigration, many Americans are overwhelmed by diversity. Putnam calls it ''socio-psychological system overload.'' With stunning regularity, he found Americans in more diverse locales tending to ''hunker down and pull in like a turtle,'' suspicious not just of the new or different, but of everybody.
Pour yourself a cup of coffee, grab a lemon bar, and discuss.