Hmm.
I'm not sure I agree that last thursday's attrocities count towards the liberal idea of 'one mans terrorist is another mans freedom fighter'. Your right Liz, there are many variables in trying to justify a such a broad view, but I think you may be over complicating it in regards to this situation.
there is no justification for waging war on inocent, or oblivious civilians, regardless of race, colour, creed or location. It is cowardly in the extreme and these people should be ashamed of what they have done. Hunt them down? yes, hold them to trial, yes. Rest assured, than unless they were, or are to be suicide bombers, they will be caught, and punished.
terroisism is a last resort - for the historical figures that have been qouted as 'for the greater good' Mandela, Gerry Adams, hell - you could even use George Washington, etc- well at least they tried to have diplomatic dialogue to back up thier actions. The mass murdering dictators - Stalin, Hitler, Pol Pot, Mladic (sp) do not fall into this category, as they allowed no rebutal from their victims/ population. As far as I'm aware, all AQ have ever done is hit and run, with an ambigous statement posted over the anonymous internet. If they at least had the balls to stand up and argue thier point first - --- instead they choose a cowards way, and as such earn nothing but my contempt.
But what people cannot do, is tar an enitre group, community, or ethnic minorotiy with the acts of a few. Mario hit in on the head with the Martyrdoom thing.(although I would allude to the reason as to why the SAS didnt touch the IRA was not for this reason, but rather a question of legality), in that revenge merely breeds revenge.
My thoughts to the poor vitims of such an ungodly act.