So what can we do? And what have we got wrong? Jon Snow hit two targets entirely appropriately on Channel 4 last night when interviewing Mucahel Fallon. He laid two charges against him. The first was that that last two governments, and maybe Labour before that, had been negligent in reducing police numbers: 19,000 police officers have gone since 2010. The number of armed police has halved.
This, Jon Snow suggested, is why we have troops on the street. Government cuts have forced us to the situation where people untrained for the task are now protecting key installations from attack. This, he rightly said, represents a failure of government to undertake its most basic duty.
We appear to be back where we were in 2003 just before Brown started the splurge the wealth of the nation upon more state dependents.