My Lords, I was heavily involved in the original regulation 261 on passenger rights 20 years ago and I understand fully the criteria for exceptional circumstances, which was the case with NATS recently. However, can my noble friend tell us what mechanism is in place for the airlines to recover financial losses caused not only by the recent air traffic failure but by other third-party providers involved, such as ground handling companies, so that passengers can be compensated in a fair and proper way by the airlines?