"The greater the diversity in a community, the fewer people vote and the less they volunteer, the less they give to charity and work on community projects; In t

"The greater the diversity in a community, the fewer people vote and the less they volunteer, the less they give to charity and work on community projects; In the most diverse communities, neighbors trust one another about half as much as they do in the most homogeneous settings." http://www.boston.com/news/globe/ideas/articles/2007/08/05/the_downside_of_diversity/ http://www.boston.com/news/globe/ideas/articles/2007/08/05/t...