The ending
The ending is a classic. Higgins lays out the justification for a possible future invasion of the Middle East. This was the era of OPEC and the Energy Crisis. What if the oil runs out? What then?
Turner is disgusted at the thinking of the men in the agency that he once worked for. They regarded his colleagues as expendable. The look of doubt on his face in the final shot as he walks away. His whistle blowing to the press may not work. " How do you know they'll print it?"