This week Facebook chief executive Mark Zuckerberg travelled to Dublin to meet with TDs to discuss issues such as the spread of misinformation, child protection and future government policies.

But when it comes to the regulation of social media giants, such as Facebook, are they publishers or just a public square?

Joining Andrea Gilligan in studio to discuss was:

• Brian O'Neill, Director of Research at TU Dublin
• Hildegarde Naughton, Fine Gael Senator and Chair of Oireachtas Communications Committee
• Adrian Weckler, Technology editor at the Irish & Sunday Independent