In the inner sanctum of his office in Langley, Va., CIA Director William Casey was interviewed last Friday by TIME Assistant Managing Editor Henry . Muller and Correspondent Bruce van Voorst. Under the ground rules, he refused to discuss sources or methods of covert operations. Repeatedly disclaiming CIA involvement or even knowledge about much of what went on, he defended what he insists was the agency's narrow role in helping the National Security Council.
Q. Why don't you tell all at this point?
A. I told all to the committees.
Q. Why can't that be made public?
A. As I understand...