Do you help out regularly at your kid's school? Do you volunteer at the local youth club? If so, you had better get cleared first. There are nine million people, working with children and vulnerable adults, who will eventually be on a massive new database. The government insists it has taken on board concerns, but will the new system actually work, and who will decide whether you are safe? Will it stop people from working with children? Will it deter paedophiles? Panorama exposes the myths and realities of the new child protection register.