 Dr. Ephraim Lemango is the chief of immunization at UNICEF. Defending champion Argentina won a record 16th Copa America title by beating Colombia 1-0, thanks to an extra-time goal from substitute Lotoro Martinez at the Hard Rock Stadium in Florida. This is CBS News. Sponsored by Progressive Insurance. We offer auto, home, and commercial auto insurance, plus a variety of business insurance options. Visit Progressive.com today.