When military investigators looked into an attack by American helicopters last February that left 23 Afghan civilians dead, they found that the operator of a Predator drone had failed to pass along crucial information about the makeup of a gathering crowd of villagers.
But Air Force and Army officials now say there was also an underlying cause for that mistake: information overload.
At an Air Force base in Nevada, the drone operator and his team struggled to work out what was happening in the village, where a convoy was forming. They had to monitor the drone’s video feeds while participating in dozens of instant-message and radio exchanges with intelligence analysts and troops on the ground.