Politics 9 February 2010 Web Only: the best of the blogs The five must-read posts from today, on Northern Ireland, marginal seats and benefit cheats. Sign up for our weekly email * Print HTML 1. How "AV" made Cameron Tory leader Michael Crick points out that had the Tories used first-past-the-post in 2005, David Cameron would have lost to David Davis. 2. Northern Ireland decommissioning -- progress but not the end At Left Foot Forward, Ed Jacobs blogs on Northern Ireland's slow march towards peace, and the painful process of laying the violent past to rest. 3. Is it because the marginals ARE different? Mike Smithson at PoliticalBetting shows us visually why things might be different in the marginal seats. 4. Cash back or not, Tories don't deserve to win Westminster North Simon Fletcher gauges reaction to the news that Joanne Cash, the Tory candidate in Westminster North, has stood down due to party infighting. 5. Benefit cheats and the profit principle Daniel Finkelstein writes that Labour's plan to reward those who identify benefit cheats with a share of the savings establishes a useful principle. Follow the New Statesman team on Twitter. › Culture Vulture: reviews round-up Subscribe More Related articles I represent a Leave constituency - but I want to delay triggering Brexit The SNP thinks it knows how to kill hard Brexit Supreme Court gives MPs a vote on Brexit – but who are the real winners?