Matt Cutts is maybe the most popular member of Google WebSpam team, with strong relations in the SEO community. He is responsible fo the Search Quality Google in Google. He has also the reputation of being the one trying to promote the Google Webmaster rules. Matt wrote also the first version of SafeSearch, the family frienldy Google filter.
He has also the reputation of not telling the whole side of the story. Because of the nature of his job he is probably forced to keep away from our ears some “details”. Bellow you can find some of the interviews and Q&A sessions with Matt Cutts.