Not wanting to get personal, or to launch into a separate debate, but I do find this attitude quite disappointing from one who bears your username. I don't know if you are Irish or have Irish family history (apologies for my ignorance), but assuming that you do, I find it difficult to believe that you place so much trust and enthusiastic devotion in the British police.

The shameful Bloody Sunday episode resulted in the death of innocent irishmen who were acting in a far more culpable way than Mr de Menezes. They were protesting, but non-violently and rightfully, and were shot down dead. The current situation is different, but it raises one allied issue: how much discretion or allowence should the police / home forces be allowed to shoot to kill? Should they really be allowed to kill on the basis that a dark-skinned man was wearing a coat that looked a bit too heavy for the weather? That's very shaky grounds indeed, and I am not happy with that as a reason for shooting to kill.