'We've been too slow to regulate Facebook': your best comments today

A look at some of the most interesting discussion today, including around Cambridge Analytica and Facebook revelations

Revelations about Cambridge Analytica and Facebook have provoked thoughtful discussion around the site on Monday. We're also looking at a conversation on Brexit after Patrick Stewart wrote about his fears - and the end of a good few weeks of rugby for Ireland.

To join in the conversation you can click on the links in the comments below to expand and add your thoughts. We'll continue to highlight more comments worth reading as the day goes on.