text: Iraqi officials investigating infiltrators #39; role in ambush Iraqi officials opened an investigation Monday into the role played by infiltrators in the ambush on Sunday that left 49 Iraqi National Guard trainees dead, in the face 
inputs: Iraqi officials investigating infiltrators #39; role in ambush Iraqi officials opened an investigation Monday into the role played by infiltrators in the ambush on Sunday that left 49 Iraqi National Guard trainees dead, in the face 