Here is a novel idea.
There was a policy in place at the time that was VERY well publicisised (Shoot-to-kill suspected terrorists in and around London). Every one I know who works in london (me included) was being VERY carefull at the time.
Hey lets just shoot everybody who looks suspicious in the London subway, we're bound to get lucky some time. And afterall everybody was warned not to act suspiciously well in advance and even in non mistakable terms. So everybody who did act suspiciously and is killed can only blame himself for acting suspiciously !
Prefect reasoning I would say, no mistakes possible !
If only the REAL TERRORISTS would comply to the set out rules and act suspiciously. You know like, not shave themselfs for a few days and wear red bandana's with jihadi texts. But of course these evil f#ckers, deviant as they are, will now try their utmost to appear like normal business men. Just like our man, Scooby here.
Darn, what now. humm, lets see.
Hey, lets just warn everybody not to act like business men and just shoot all the suits on sight. At least they can't say that they weren't warned, right ? And were bound to get lucky sooner or later. And we are seen to at least be doing something. Right ?
... Right ? ...
What ? no cheers from the white shirt and tie crowd this time ?
All this white (business class) trash should remember one important thing, as written down by the German anti-Nazi activist, Pastor Martin Niemöller
First they came for the Jews
and I did not speak out
because I was not a Jew.
Then they came for the Communists
and I did not speak out
because I was not a Communist.
Then they came for the trade unionists
and I did not speak out
because I was not a trade unionist.
Then they came for the Catholics
and I did not speak out
because I was not a Catholic
Then when they came for me and other protestants
nobody protested or came to my defense
None were left that could.