What Miami-Dade County is doing about Zika

With 12 confirmed cases of the Zika virus in Miami-Dade County, officials are asking residents to take part in mosquito-prevention efforts, including draining standing water and wearing insect repellent. Gwen Ifill speaks with Alina Hudak, Deputy Mayor of Miami-Dade County, for details on the identified cases, what containment measures are being utilized and the “many unknowns” about the disease.