Former US President Barack Obama was quizzed by Prince Harry on BBC Radio 4's Today programme, BBC reports.
He has warned against the irresponsible use of social media. He said that such actions were distorting people's understanding of complex issues, and spreading misinformation. The former president expressed concern about a future where facts are discarded and people only read and listen to things that reinforce their own views.
Prince Harry, fifth in line to the throne, is one of several prominent figures who are guest-editing the programme over the Christmas period.