George Monbiot in The Guardian:
Those of us who argued against the war possessed no prophetic powers. I asked the following questions in the Guardian not because I had any special information or insight, but because they were bleeding obvious. “At what point do we stop fighting? At what point does withdrawal become either honourable or responsible? Having once engaged its forces, are we then obliged to reduce Afghanistan to a permanent protectorate? Or will we jettison responsibility as soon as military power becomes impossible to sustain?” But even asking such things puts you beyond the pale of acceptable opinion.
You can get away with a lot in the media, but not, in most outlets, with opposing a war waged by your own nation – unless your reasons are solely practical. If your motives are humanitarian, you are marked from that point on as a fanatic. Those who make their arguments with bombs and missiles are “moderates” and “centrists”; those who oppose them with words are “extremists”. The inconvenient fact that the “extremists” were right and the “centrists” were wrong is today being strenuously forgotten.