This AQ link is tricky. If they're going after American allies, hit Britian first. Spain's presence in Iraq is minimal. Isn't AQ hell bent on toppling Western bla bla bla? Spain doesn't strike me as the model of Western Imperialism. And if it was a crusade thing, then why hasn't the Vatican been bombed?
If they're going to go through all that trouble, why not hit the Tube?
This Spain thing stinks of domestic terror, not of the shadowy, international terror stuff that Bush has been pimping. What motive(s) does this serve for an international terror organization(Besides trying to alienate the US from the world, which Bush seems to be doing quite well on his own)?