Kent,

I agree.  There is something amiss.  A laceration into the carotids (arterial system) releases blood in copious amounts and at very high pressure, kinda like hitting a "geyser", and the jugulars (vein system) have vast stores of blood.   Sorry for the graphic grossness, but it is a medical/biological fact.  Didn't see it here.  Don't know what to make of it.   Nick Berg is no doubt very dead, but I think the video, if authentic, was at least altered to some degree.

Gene