http://www.unison-scotland.org.uk/siu/siusep01.html#2
By the time you get this issue the USA may have identified the people behind the 11 September atrocity. USA/ NATO may already have taken action.
Either way the long-term problems that terrorism feeds on will not have been tackled. That requires an internationalism, a reason, an understanding and a commitment to justice and humanity rather than merely national interest.