Some interesting/scary statistics on 32Sixteen: Forget The Road To Basra:
British Servicemen Killed in Iraq in 2007: 24
Cyclists Killed on Britains Roads far in 2007: 74*
Pedestrians Killed on Britains Roads far in 2007: 336*
* based on 2005 accident figures
As Bez says in the comments, those statistics would appear to suggest that survival is easier when you have a machine gun.