I meant to blog about this event back in April at the time, but never got around to it. Basically, towards the end of April, there was a demonstration in Falujah in Iraq, shots were (reportedly) fired from the crowd, and US troops opened fire, killing 2 and injuring 14.
Well, Charlie Stross has saved me the bother ;) — he’s written a good summary of the historical precedent for this chain of events, and what resulted back then.