User blog comment:JakePT/Mass Effect 3 to be Revealed at VGA Awards?/@comment-1691295-20101204010722

I really think the Clash and SIS clues are simply hints to what some of us have expected, that at least a portion of the trailer, at least the one we see, is in London.

The hints being The Clash's association with London and the fact that the SIS headquarters are also in London, on the River Thames, not far from Westminster, which some of us think is visible in the preview. I don't think the SIS hint suggests the game is about the SIS or even features the SIS (the other hints are so damn obscure that the SIS clue referring to the game actually being about the SIS would be out of place, and too direct).