A new vaccine may help turn Ebola into a disease we can prevent, and a new drug may make it one we can cure.  But the political crisis in the Democratic Republic of Congo has fueled violence against health workers and Ebola treatment centers.  Find out why context matters in the efforts to stop Ebola, what new drugs and vaccines are on the horizon, and whether the world is prepared for the next infectious pandemic.  Even if Ebola’s threat is diminishing, what about the next pandemic?  Is the world prepared? Guests: Richard Preston – Journalist and author  of “Crisis in the Red Zone: The Story of the Deadliest Ebola Outbreak in History.” Yap Boum – Regional representative for Africa for Epicentre, the research arm of Médecins sans Frontières (Doctors Without Borders) in Cameroon. Amy Maxmen – Senior reporter, Nature.  Her most recent piece is "Behind the Front Lines of the Ebola Wars."