VIDEO - BBC World Service - Newshour, The psychology behind rising nationalism

Jonathan Haidt is Professor of Ethical Leadership at New York University - he gave Newshour's Razia Iqbal his view on the rising popularity of nationalist, authoritarian politics in the US, following the election of Donald Trump.

(Picture: "Make America Great Again" baseball caps Credit: Getty)

http://www.bbc.co.uk/programmes/p04h6wjx