Bernie Sanders rally draws thousands to Greensboro

The vast majority of Democrats in Greensboro are black, and Bernie's biggest obstacle to winning the nomination is his inability (thus far) to earn much of any black support. So it's newsworthy that his rally in Greensboro looked like this: http://i.imgur.com/eo28Bag.jpg

And it's noticeable because Greensboro is 40% African American...