Italian journalist Guliana Sgrena was fired upon by US troops minutes after she was released from captivity in Iraq, March 4th. Apparently, some 400 to 500 rounds were loosed upon the vehicle she was driving in. The US soldiers in Iraq carry M4's, a variant of the old Armalite M16. These use 30 round magazines. At say, 450 rounds expended, we have 15 (!) plus magazines emptied at full auto at this woman's car.