ATCO Fred, sorry, I wasn't clear. What I mean is that the ability to provide surveillance derived traffic information to BS aircraft has blurred the line with TS. Fully agree that the use of surveillance to identify BS aircraft and 'integrate' them with IFR inbounds/outbounds has been essential. Of course, if the UK were to fully adopt ICAO then we would only provide ATC service to IFR flights inside controlled airspace and only provide FIS (not the fudge that it UK FIS) outside controlled airspace.