Maria Ressa: Is the press under attack in the Philippines?

No world leader better epitomises the strong man style of political leadership than President Rodrigo Duterte of the Philippines. One hallmark of his rule? A visceral dislike of scrutiny from the independent media. Stephen Sackur speaks to journalist Maria Ressa who founded the Rappler news website and has just been convicted of cyber-libel in a case that has raised worldwide concern. Is press freedom being strangled by populist politics?