http://www.governing.com/authors/rss/rss/?a=92966999 Joel Kotkin is a GOVERNING contributor. He is an internationally-recognized authority on global, economic, political and social trends, and is the author of a new book, The Next Hundred Million: America in 2050. http://www.governing.com/topics/economic-dev/Growing-America-Demographics-and.html With America expected to grow by 100 million people in the next 40 years, how will states and localities run a bigger, more diverse country?