Can North Be Believed?

His credibility declines as his testimony nears

Would he talk or wouldn't he? After a week of haggling over whether Marine Lieut. Colonel Oliver North would ever detail his multiple roles in the Iran- contra scandal, the zealous former National Security Council aide agreed to begin his long-awaited public testimony next week before the congressional committees probing the affair. But even as the committees worked with North's lawyer to clear the path for the Marine's testimony, other witnesses were planting land mines in his way. Their accounts raised a pointed question: Can North be believed?

The colonel's credibility was badly damaged when Security Consultant Glenn Robinette told how...