I share my hon. Friend's horror at the appalling incidents in Madrid. Since the atrocity there, the Metropolitan police, Transport for London and other London front-line agencies have been in regular contact with their counterparts in Madrid to learn lessons and find out what more London could do both to prevent an attack and to respond to any consequences. We have also launched an awareness campaign, which had been planned before the Madrid attack and which has been very visible indeed on the London underground and in other transport locations in London, highlighting the need for awareness and preparedness. That is all part of the work that we are doing to ensure that we are as well prepared as we possibly can be.