John McGuinness addresses Public Accounts Committee
Public Accounts Committee chairman John McGuinness has answered questions from the committee over controversial comments he made this week and on the judgement he exercised when he was a minister of state.
Sinn Fein's Mary Lou McDonald, who is a member of the Public Accounts Committee talks to Drivetime
One of the speakers at this week's Web Summit was Samantha Barry - CNN's head of social media who is originally from Cork. She spoke to Mary about who uses social media well, in this country and in the U.S. and how tweeting has changed everything.