US Venezuela envoy: Military option still on the table

Unrest in Venezuela continues for a third day as the US special envoy for the country, Elliott Abrams, tells Newshour that military intervention is still a possibility.

Also in the programme: the latest on violence in northwestern Syria and how a heart surgeon was inspired by Leonardo Da Vinci.

(Picture: Protest in Caracas, Venezuela. Credit: Edilzon Gamez/Getty Images)