---

Terrorism: Aviation Security

The noble Lord asks some pertinent and, I have to say, extremely difficult questions. My honest answer to his first question must be that we do not know the answer. This explosive is extremely difficult to detect. Technologies are known for detecting PETN and one consideration that we will have to take advice on is whether we should extend PETN testing to cargo going on board aircraft—most particularly passenger aircraft, but also other aircraft. We have to do this in a way that is consistent with assuring the public that they can travel safely, while not crippling the country’s economy and international commerce. Therefore, an international effort will be needed and we shall talk not only to other operators but to those who may be able to help us technologically. Part of the Transport Secretary’s review will consist of talking to the companies. Many of them are well advanced in increasing—and we will be increasing—the screening processes, including capabilities that are not necessarily at the moment distributed as a matter of course.