I join my right hon. Friend in everything she says in respect of the deaths and injuries that have taken place, and I join her in sending our condolences to the families and the injured.
My right hon. Friend has set exactly the right tone. Those of us who are privy to the information and background of these matters know very well that it has been little short of a miracle that, over the course of the last few years, we have escaped so lightly from the evil that is, I am afraid, present in our society and that manifests itself in these senseless and hideous acts of violence and evil. We have been very fortunate in that our security services have been immensely diligent and helpful in preventing such attacks, but she may agree with me that the House will simply have to be resolute in accepting that such attacks cannot always be prevented and that, as a society, we have to accept that we are going to have to fight this evil with rational democratic principles in order to get rid of it and that, in reality, there are no shortcuts that will ever enable us to do that.