How Ebola can hide in the bodies of survivors

Liberia was declared Ebola-free this weekend, marking a major milestone in the fight against the epidemic in West Africa, where it killed more than 10,000. But for survivors, the disease can still wreak serious after-effects. Judy Woodruff learns more about those health complications from Ebola patient Dr. Ian Crozier, who nearly went blind from the virus after making a narrow escape from death.