"Where is the Land of Opportunity? Intergenerational Mobility in the US": http://feedly.com/e/zjveH_cM
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
"Where is the Land of Opportunity? Intergenerational Mobility in the US": http://feedly.com/e/zjveH_cM