Joe Biden Express

http://www.washingtonpost.com/wp-dyn/content/article/2008/08/26/AR2008082603482.html?hpid=topnews

http://www.huffingtonpost.com/2008/08/23/meet-jill-biden_n_120855.html

http://www.huffingtonpost.com/sen-harris-mcdowell/they-dont-know-joe-the-se_b_121786.html

http://blackhistorypages.net/pages/mashadd.php

http://www.nps.gov/history/nR/travel/underground/dc2.htm