Here's the problem as I see it.
There's a semantic argument over whether it really is 50:1 ratio. I think that this misses the point.
To help PB to humanise the point, let us talk about the ratio of criminals to non-crimnals in Prestwich.
Let us presume that the ratio wan't 50 civilians to 1 criminal. Let us agree that this was an overexageration and say that it was 1 civilian to 1 criminal, something which is miles apart from the facts.
Would you agree to a 1:1 bombing ratio in Prestwich or Jersey? Let's say that you would agree that terrorism is such a problem that we should murder an innocent person for every terrorist, for the sake of rhetoric.
How many are enough? Let's say that you could murder your own child with the absolute guarantee that world peace would break out. Would you kill your own heir for this?
More to the point, would you allow a person living several thousand miles and in social terms, light years away from this violence determine whether or not your lad should be murdered for that terrorist?
Let's say the ratio was 100 terrorists for 1 citizen. Is your lad worth that fee then?
In IT, we call this "Not Invented Here" syndrome. It essentially means that somebody can rationalise anything that they believe in because it doesn't actually effect them if their ideology is wrong.
I have a feeling that PB wouldn't murder his own child to kill 100 terrorists as the 1:100 ratio is too much when his own humanity is tested. Therefore, the entire semantic argument concerning numbers has absolutely no bearing on anything. Thus remains the very essence; can we kill innocents in the pursuit of terrorism?
Specifically, can we kill YOUR innocents for this purpose? If your answer is negative, you have absolutely no right to support any counter terrorism measures.