 I need to get my schoolwork done. In College Park, John Dome in WTOP News. It's 2.23. Today is National HIV Testing Day. WTOP's Dick Iagliano turned to the famed Whitman-Walker Clinic here in D.C. to learn more about the importance of testing. Ramatule Keita, Director of Community Health at Whitman-Walker, reminds us that human immunodeficiency virus, which causes AIDS, is still infecting people.