. >> let's pull and terry martin, who is on the story for us here in berlin. what in the world is wrong with this weapon? >> well, it's very elemental. it seems it doesn't shoot straight when it's hot, and that obviously can be a very serious problem for combat troops who are facing very dangerous situations. this is the standard issue combat rifle for german troops. they used it in afghanistan extensively. it is still being used by german troops and now in mali. let's look at what the criticism is. there have been several studies on this weapon, and the latest results show that after shooting two magazines the rifle longer strikes with accuracy. it's that simple. after three magazines have been discharged, the likelihood of it hitting its target is down to about a third. when it gets really hot, it jobs below 10%, and that obviously is pretty damning for this weapon. >> the only place you would want to use that would be in the middle of the north pole. germany prides itself on its technical know-how. a lot of people had to be asking how this could even happen