Well Harriet Harman’s clear-the-air, kill the story interview with Newsnight went well then. Time and time again Laura Kuenssberg asked Harman if she would say that the National Council of Civil Liberites’ decision to affiliate with the Paedophile Information Exchange was a mistake. Time and time again Harman, almost inexplicably, refused. Guaranteeing the story will keep going for a while at least…