Sky's chief presenter Mark Austin reports from Cucuta, Colombia, close to the Venezuelan border, where he caught up with chief correspondent Stuart Ramsay. Speaking with people in Venezuela's capital, Caracas, Stuart Ramsay has been told that the US government is still far from initiating a real regime change, despite having removed president Nicolas Maduro. Reflecting on recent events, he adds: "It's regime change - but it's not. They've removed the head, but they haven't removed the rest of