Civilians all.
Wonder who did it. And if it's to do with the G8 or the Middle East. Probably not the Olympics; something like this would have taken long term planning.
(Small Beer, Thu 7 Jul 2005, 10:55, archived)

winning the olympics could have been the secret trigger

and makes more impact if the world knows their people will be where these type of things can happen
( Enigmatic ™                 Voice No More                  ©, Thu 7 Jul 2005, 10:57, archived)