Before you start making judgements about what Mr. Roberts can or can't do from the cabin you should probably educate yourselves on the research that is out there in this field and what Mr. Roberts motives really are. I saw Mr. Roberts presentation two years ago at a security conference on this very subject and I can tell you his initial research had nothing to do with WiFi and everything to do with the fact that all of the planes critical and non-critical systems were interconnected. All of the research findings were turned over to the manufacturers at least two years ago and they have not fixed this.