Well, Llywydd, we are in discussions with the airport in Cardiff to see if we can find a practical way in which airport testing itself could be carried out. There are some practical issues that have to be addressed in that, in terms of the length of time that people may have to wait at an airport, how long people would be prepared to wait at an airport—you can't require people to do these things; it's a matter of voluntary participation. Therefore, you have to spend a bit of time to make sure that, if you are able to provide tests at an airport, you can do it in a way that is effective, and those discussions with the airport authorities here in Cardiff are continuing.