emma simpson, bbc news. let's talk to peter ruddock in salford.ow is what politicians knew, and when?— inquiry now is what politicians knew, and when? yes, the latest -hase knew, and when? yes, the latest hase of knew, and when? yes, the latest phase of this _ knew, and when? yes, the latest phase of this inquiry _ knew, and when? yes, the latest phase of this inquiry has - knew, and when? yes, the latest phase of this inquiry has all- knew, and when? yes, the latest phase of this inquiry has all been| phase of this inquiry has all been about who knew what and when. interestingly, i think we are going to see a lot of focus on that. absolutely, what it politicians know, were they given information about bugs in the horizon system and about bugs in the horizon system and about the prosecution is going on? but also about the structure of the post office, the relationship between the post office on the government, and whether the structure itself prevented ministers from getting information orfrom finding out more. of course, the government is the sol