(No Laughing Matter) Time was we made light of it, every kid got it - it was part of growing up. (Long-term Impact) Then we learned what it could do, and that it didn't have to be. (Vaccine Vacillation) But times and attitudes changed amid a flood of suspicion and misinformation... (The Renewed Mortality) ...and so now it's back, in Europe, in Africa, in the U.S. and, very possibly, in Arkansas. Measles and its threat.