My Lords, we have discussed such matters with British Airways. Indeed, BA has been in close liaison with the Civil Aviation Authority, which is reviewing the circumstances in which the passenger boarded the aircraft. That review has not yet been completed, but it will be reported to Ministers. The CAA is also looking at the security of access to the flight deck on aircraft to ascertain whether it can be made more difficult for disruptive passengers to interfere with the flight of the aircraft. We understand that the Kenyan authorities have decided not to pursue the offender; he is considered to be mentally deranged. However, should he return to the United Kingdom, BA has said that it will prosecute.