The US and UK don't target civilians? - that's just something we say to make ourselves feel better about killing them. When Bush and Blair decided to invade first Afghanistan then Iraq they knew civilians would be killed and therefore are responsible for their deaths and injuries just as the London bombers are responsible for the deaths and injuries of July 7th. People seem to think there's a difference in killing when you are an elected representative of a country and can claim to be acting in defense of your country but killing is killing.
On Blair's stupid declaration that the terrorists represent 'Evil'... he needs to contemplate this equation: Legitimate Grievance + Oppression = Terrorism. I actually think that Blair is rather more evil than the bombers. As has been written elsewhere, the bombers were undoubtedly enraged by their perception of the injustices meted out on Muslims by the UK and its allies. They were likely identified as youthfully emotional and seeking certainty by their recruiters, ripe for guiding in the dark arts of terrorism. There's no doubt that what they did was wrong and inexcusable but that they did it has to be understandable, if we can look at it all coldly and rationally. Blair is another fish all together and is covering his sorry arse with his protestations that the invasion of Iraq has nothing to do with the bombings. For him to do otherwise would mean taking some responsibility for his actions, and like Bush, he has shown himself unwilling to do so. He was warned left, right and centre that attacking Iraq would lead to increased support for anti-West terrorists and would turn Iraq into a training ground for terrorists.
All this 'War on Terrorism' crap... what happened to 'tough on crime and on the causes of crime'? As has already been pointed out in this thread, of course our actions in the world are intimately connected to the reactions to it. As Ray Charles sang, it takes two to tango'. Nothing happens in a vacuum. Political and economic expediency as ever stops the meaningful tackling of terrorism. Get out of Iraq and let the Iraqis run their country. Pay for the damage we've done to that country. Stop dealing with the Saudis for their cheap oil. Stop supporting Pakistan's military dictatorship. Stop selling arms. Stop supporting tyrants like Osama bin Laden and Saddam Hussein. Endure a fall in our standard of living in order to put ourselves where our mouths are. Cancel African 'debt'. Open our markets to products from the developing world. And.... mutter mutter
It's never been explained