True as per Putnam 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

True as per Putnam 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...