Julie Bishop's emoji use under scrutiny as Penny Wong asks: why the red face?

'I've never heard of what a Buzzfeed was,' says Liberal senator during committee session about the foreign minister's emoji-filled interview with the news site

Related: Julie Bishop goes on emoji-fuelled late-night tweeting spree

Labor's attempt to explore Julie Bishop's views on Vladimir Putin ran into an unexpected obstacle during Thursday's Senate estimates when a Liberal senator admitted he did not know what an emoji or "a Buzzfeed" was.