John Vachon, 1949pic.twitter.com/1kvvTwVYdN
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
In Harlem, they were preaching to the choir. This billboard was then too radical for other parts of the nation. 
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.