Can Stormont cut the squabbling? New First Minister wants things to change

Can Stormont mend its ways and cut out the squabbling? That's the goal new First Minister Arlene Foster has set. She took up the post in a moment of history yesterday. And she told fellow MLAs she wants things to change. But is it really realistic to expect consensus? Aren't disagreements and arguments what politics is all about? Joel got the views of Professor Jon Tonge, co-author of an award winning book on the DUP, commentator Brendan Mulgrew and Former Lib Dem MP Lembit Opik