in the murder of former security officer alexander litvinenko in london six years ago the polonium otoh caused tension between the kremlin and downing street. my colleague bill dog is here in half an hour's time but up next the second part of our special report the delve deep into the emotional trauma of the troops. on the battlefield. there was one particular incident that still disturbs me today i wish i could take that day back i give anything we went into an area near the baghdad stadium this key came into our area and actually stopped about seventy five meters in front of my vehicle that tells you how far the vehicle came into our perimeter and. which is we lit it up. we had three of the. victims in the right key that there were expiring rapidly we pulled them out of the car and we started doing it for a state i called a corpsman the corpsman came and got the three bodies and took them back to the patel you and surgeon. corpsman came back dump the bodies on the side of the road i went over to the corpsman. what do you all do and how can you bring him back you need to get him out of